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Tractors -- Economic aspects

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• Tractors
• Economic aspects

• Tractors -- Economic aspects -- Pennsylvania
• Tractors -- Economic aspects -- United States
• Crawler tractors -- Economic aspects
• Farm tractors -- Economic aspects

• An economic study of the gas tractor in Pennsylvania (Pennsylvania State College Agricultural Experiment Station, 1919), by D. S. Fox (page images at HathiTrust)

• Tractor depreciation and technical change : a case study of 60-horsepower tractors (U.S. Dept. of Agriculture, Economic Research Service, 1990), by LeRoy Hansen, Hyunok Lee, and United States. Dept. of Agriculture (page images at HathiTrust)

• Selecting crawler skidders by comparing relative operating costs (Intermountain Forest & Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1969), by Paul L. Schillings (page images at HathiTrust)

• Economics of tractor farming in the Piedmont area of South Carolina (South Carolina Agricultural Experiment Station, 1948), by Charles P. Butler, D. E. Crawford, and South Carolina Agricultural Experiment Station (page images at HathiTrust)

• An economic study of tractors on New York farms (Cornell University Agricultural Experiment Station, 1930), by C. W. Gilbert (page images at HathiTrust)

Items below (if any) are from related and broader terms.

• Farm engines and tractors. (McGraw-Hill, 1953), by Harold E. Gulvin (page images at HathiTrust)
• The modern gas tractor : its construction, utility, operation, and repair, a practical treatise (Henley, 1918), by Victor Wilfred Pagé (page images at HathiTrust)
• Tractor attachments for brush, slash, and root removal. (U.S. Dept. of Agriculture, Forest Service, Equipment Development Center, 1971), by Calif.) Equipment Development Center (San Dimas (page images at HathiTrust)
• Handbook of the ten-ton artillery tractor, model 1917. (Ordnance Dept., 1918), by United States. Army. Ordnance Dept (page images at HathiTrust)
• Gasoline tractors. A practical presentation of tractor problems and their solution (American Technical Society, 1919), by Charles B. Hayward (page images at HathiTrust)
• Tractor operation and daily care. (Southern Association of Agricultural Engineering and Vocational Agriculture, 1959), by G. E. Henderson and Southern Association of Agricultural Engineering and Vocational Agriculture (page images at HathiTrust)
• The Nebraska tractor tests 1920-1940. (Agricultural experiment station of the University of Nebraska college of agriculture, 1941), by University of Nebraska--Lincoln. Agricultural Research Division (page images at HathiTrust)
• The wealth of the soil. (Detroit, 1952), by Louis Bromfield (page images at HathiTrust)
• Tillage, planting, and harvesting equipment on grain farms and rates of doing field work with these implements when drawn with horse and with tractor power (northern Great Plains and Pacific Northwest) (Washington, DC : Bureau of Agricultural Economics, 1936., 1936), by Raymond Secord Washburn, Della E. Merrick, United States. Bureau of Agricultural Economics, and United States Department of Agriculture (page images at HathiTrust)
• Garden tractors on Long Island. (State Institute of Applied Agriculture, 1929), by Archie Augustus Stone (page images at HathiTrust)
• Power. (Cleveland, 1959), by inc Capper-Harman-Slocum (page images at HathiTrust)
• Das Agricultur-Maschinenwesen in Aegypten, nach seinen Hauptbestandtheilen dargestellt. (Metzler, 1867), by Max Eyth (page images at HathiTrust)
• An economic study of tractors and motor-trucks on New York farms. ([Ithaca, N.Y.], 1929), by Clifford William Gilbert (page images at HathiTrust)
• Farm tractors (Fuels and lubricants) (Baltimore, 1950), by Baltimore American Oil Company (page images at HathiTrust)
• Utilization of tractors and cost of tractor power on grain farms : (northern Great Plains and Pacific Northwest, 1933) (Washington, DC : Bureau of Agricultural Economics, 1936., 1936), by Raymond Secord Washburn, R. S. Kifer, and United States. Bureau of Agricultural Economics (page images at HathiTrust)
• Tractor engines (American automobile digest, 1920), by E. F. Hallock (page images at HathiTrust)
• Factors affecting the cost of tractor logging in the California pine region (Agricultural Experiment Station, 1929), by Myron E. Krueger (page images at HathiTrust)
• Diesel power and field operating costs (Montana State College, Agricultural Experiment Station, 1934), by Montana State College Dept. of Agricultural Economics and Montana State College Dept. of Agricultural Engineering (page images at HathiTrust)
• Using the tractor efficiently (Pennsylvania State College, School of Agriculture and Experiment Station, 1937), by A. W. Clyde (page images at HathiTrust)
• Rumely oil-pull tractor. (La Porte, Ind., 1909), by Edward A. Rumely (page images at HathiTrust)
• Instructions for traction and stationary engineers : A book of instruction and reference for traction and stationary engineers, with questions and answers, useful tables and rules (Printed by Pedersen linotype co., 1906), by William Boss (page images at HathiTrust)
• A study of sidedraft and tractor hitches (Agricultural Experiment Station, 1922), by A. H. Hoffman (page images at HathiTrust)
• La motoculture pratique : étude critique sur les appareils de culture mécanique et sur leur emploi (Baillière, 1920), by Alfred de Poncins (page images at HathiTrust)
• Farm power. (International Harvester Company of America (incorporated), 1915), by International Harvester Company (page images at HathiTrust)
• Experimental investigation of the air and fuel heating devices used on the case 15-27 kerosene tractor (1921), by Richard Boonstra (page images at HathiTrust)
• Airdrop of supplies and equipment : rigging full-tracked tractors. (Depts. of the Army and the Air Force, 1975), by United States. Department of the Army and United States Department of the Air Force (page images at HathiTrust)
• Tractor power on irrigated farms in southern Idaho. ([Washington, D.C.?], 1951), by Heinrich Hermann Stippler, James William Martin, Idaho Agricultural Experiment Station, and United States. Bureau of Agricultural Economics (page images at HathiTrust)
• Influence of the tractor on use of horses (U.S. Dept. of Agriculture, 1920), by L. A. Reynoldson (page images at HathiTrust)
• Fundamentals of earthmoving (Caterpillar Tractor Co., 1963), by Caterpillar Tractor Company (page images at HathiTrust)
• Traktor : tekhnika i ėkonomika ego primi︠e︡nenīi︠a︡ v selʹskom khozi︠a︡ĭstvi︠e︡ (Mezhdunarodnoe kn-vo, 1921), by Michael George Corson (page images at HathiTrust)
• The tractor and its effects on farming in Minnesota (U.S. Dept. of Agriculture, Bureau of Agricultural Economics, 1940), by Ross V. Baumann (page images at HathiTrust)
• Farm equipment red book. (Implement and tractor, in the 20th century) (page images at HathiTrust)
• The kinematics and dynamics of the wheel-type farm tractor ([Agricultural Engineering], 1927), by Eugene George McKibben and Joseph Nisbet LeConte (page images at HathiTrust)
• Farm Engines and How to Run Them: The Young Engineer's Guide, by James H. Stephenson (Gutenberg ebook)

• An economic analysis of farm power in Alberta and Saskatchewan (Ottawa, Can., 1936), by E.G. Grest (page images at HathiTrust)

• Transcript of proceedings : hearing on exemption of gondola-type grape tractors from registration (AB 52, 1960 session, 1st X) [and] authorized emergency vehicles (AB 2540, 1959 sesion) : Sacramento, California, August 8, 1960. (s.n., 1960), by California. Legislature. Assembly. Interim Committee on Transportation and Commerce (page images at HathiTrust)

• Tractor and implement catalogue, California state fair, 1919. ([Sacramento, 1919), by George Collins and California. State Board of Agriculture (page images at HathiTrust)
• Tractor field book : with farm equipment specifications; a compilation of facts and information of value to those who make, sell or use equipment used in power farming. (Chicago : Farm implement news, 1928-1958., 1928) (page images at HathiTrust)
• Avery Company : [catalog]. 1918 (The Company., in the 20th century), by Avery Company (page images at HathiTrust)
• Power farming with greater profit. ([Moline, Ill.], 1937), by John Deere (page images at HathiTrust)
• Farm equipment red book. (Implement & Tractor [etc.], between 1000 and 1999), by Implement & tractor (page images at HathiTrust)
• International gasoline tractors. (International Harvester Company of America, 1909), by International Harvester Company of America (page images at HathiTrust)
• Farm equipment red book. (Implement and tractor, in the 20th century) (page images at HathiTrust)

• Ordnance maintenance medium tractor M1 (Allis Chalmers HD-7W) electrical system, power train, frame, and tracks (War Dept., 1943) (page images at HathiTrust)

• Tractor depreciation and technical change : a case study of 60-horsepower tractors (U.S. Dept. of Agriculture, Economic Research Service, 1990), by LeRoy Hansen, Hyunok Lee, and United States. Dept. of Agriculture (page images at HathiTrust)

• Tractor depreciation and technical change : a case study of 60-horsepower tractors (U.S. Dept. of Agriculture, Economic Research Service, 1990), by LeRoy Hansen, Hyunok Lee, and United States. Dept. of Agriculture (page images at HathiTrust)

More items available under broader and related terms at left.