The Online Books Page

Books by Erwin O. Ullrich:

Books in the extended shelves:

• Ullrich, Erwin O.: Effect of alternative wheat and feed grain prices on optimum farm plans and income in central South Dakota : Hughes and Sully counties (Agricultural Experiment Station, South Dakota State University, 1970), also by John T. Sanderson, South Dakota Agricultural Experiment Station. Economics Dept, and United States. Dept. of Agriculture. Economic Research Service. Farm Production Economics Division (page images at HathiTrust)
• Ullrich, Erwin O.: Effect of alternative wheat and feed grain prices on optimum farm plans and income in central South Dakota : Aurora, Brule, Charles Mix, Gregory and Jerauld counties (Agricultural Experiment Station, South Dakota State University, 1970), also by John T. Sanderson (page images at HathiTrust)
• Ullrich, Erwin O.: Effect of alternative wheat and feed grain prices on optimum farm plans and income in central South Dakota : Buffalo, Hand, and Hyde counties (Agricultural Experiment Station, South Dakota State University, 1970), also by John T. Sanderson (page images at HathiTrust)
• Ullrich, Erwin O.: Effect of alternative wheat and feed grain prices on optimum farm plans and income in central South Dakota : Brown and Spink Counties (Agricultural Experiment Station, South Dakota State University, 1971), also by John T. Sanderson, Brookings. Economics Dept South Dakota. Agricultural Experiment Station, and United States. Dept. of Agriculture. Economic Research Service. Farm Production Economics Division (page images at HathiTrust)
• Ullrich, Erwin O.: Effect of alternative wheat and feed grain prices on optimum farm plans and income in north central South Dakota : Faulk and Potter counties (Agricultural Experiment Station, South Dakota State University, 1969), also by John T. Sanderson (page images at HathiTrust)
• Ullrich, Erwin O.: Effect of alternative wheat and feed grain prices on optimum farm plans and income, north central South Dakota : Campbell, Edmunds, McPherson, and Walworth counties (Agricultural Experiment Station, South Dakota State University, 1969), also by John T. Sanderson (page images at HathiTrust)
• Ullrich, Erwin O.: Effects of alternative wheat and feed grain prices on optimum farm plans and income : Beadle, Clark, Codington, Day, Marshall, and Roberts counties (Agricultural Experiment Station, South Dakota State University, 1972), also by John T. Sanderson (page images at HathiTrust)
• Ullrich, Erwin O.: Effects of alternative wheat and feed grain prices on optimum farm plans and income in south central South Dakota : Lyman and Tripp counties (Agricultural Experiment Station, South Dakota State University, 1972), also by John T. Sanderson (page images at HathiTrust)
• Ullrich, Erwin O.: Machinery costs on typical wheat farms in north central South Dakota : Brown and Sprink counties (South Dakota State University, Agricultural Experiment Station, Department of Economics in cooperation with Farm Production Economics Divison, Economic Research Services, U.S. Department of Agriculture, 1968), also by John T. Sanderson and Wallace G. Aanderud (page images at HathiTrust)
• Ullrich, Erwin O.: Machinery costs on typical wheat farms in north central South Dakota : Campbell, Edmunds, McPherson, and Walworth counties (South Dakota State University, Agricultural Experiment Station, Department of Economics in cooperation with Farm Production Economics Division, Economic Research Service, U.S. Dept. of Agriculture, 1968), also by John T. Sanderson and Wallace G. Aanderud (page images at HathiTrust)
• Ullrich, Erwin O.: Machinery costs on typical wheat farms in north central South Dakota : Faulk and Potter counties (South Dakota State University, Agricultural Experiment Station, Dept. of Economics in cooperation with Farm Production Economics Division, Economic Research Service, U.S. Dept. of Agriculture, 1968), also by John T. Sanderson and Wallace G. Aanderud (page images at HathiTrust)
• Ullrich, Erwin O.: Opportunities for improving income from cream production in North Dakota (Depts. of Agricultural Economics, Dairy Husbandry and Veterinary Science, Agricultural Experiment Station, North Dakota Agricultural College in cooperation with Farm Economics Research Division, Agricultural Research Service, U.S. Dept. of Agricullture, 1960) (page images at HathiTrust)

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