| Call number | Item |
| H | Social Sciences (Go to start of category) |
| HB-HJ | Economics and Business (Go to start of category) |
| HE | Transportation and Communications (Go to start of category) |
| HE8817 .H84 | ![[Info]](https://onlinebooks.library.upenn.edu/info.gif) Study for Alameda County 911 (ca. 1974), by Scott W. Hovey |
| HE8846 .U85 P84 1993 | Pulling Together for Productivity: A Union-Management Initiative at US West, Inc. (OTA-ITE-583; 1993), by United States Congress Office of Technology Assessment |
| HE8868 .M3 M4 | Government Telephones: The Experience of Manitoba, Canada (c1916), by James Mavor (PDF at McMaster) |
| HE9713 .J6 1925 | Economics of the Radio Industry (reprint; originally published 1925), by Hiram L. Jome (PDF at worldradiohistory.com) |
| HE9721.U5 C65 1987 | Commercial Newsgathering From Space (1987), by United States Congress Office of Technology Assessment (PDF files at Princeton) |
| HE9721.U5 M33 | Domestic Satellite: An FCC Giant Step (originally published 1977), by Robert S. Magnant (PDF files at mac.com) |
| HE9723 .B4 | The American Boys' Book of Signs, Signals and Symbols (Philadelphia and London: J. B. Lippincott Co., c1918), by Daniel Carter Beard (multiple formats at archive.org) |
| HE9797.4 .E3 A3675 2006 | Airport Economics Manual (second edition, 2006), by International Civil Aviation Organization (PDF at icao.int) |
| HE9803 .A15 1973 | The Long Range Needs of Aviation: Report of the Aviation Advisory Commission, January 1973 (with minority dissent; Washington: GPO, 1973), by United States Aviation Advisory Commission (page images at HathiTrust) |
| HE9803 .A4 W54 | Turbulence Aloft: The Civil Aeronautics Administration Amid Wars and Rumors of Wars, 1938-1953 (Washington: U.S. Dept. of Transportation, Federal Aviation Administration, 1979), by John R. M. Wilson (page images at HathiTrust) |
| HE9803 .A944 L48 1988 | The Airway to Everywhere: A History of All American Aviation, 1937-1953 (Pittsburgh: University of Pittburgh Press; London: Feffer and Simons, c1988), by W. David Lewis and William F. Trimble (page images at Pitt) |
| HE9911 .H44 | Skyways of Tomorrow (Headline Books #47; New York: Foreign Policy Association, 1944), by Burnet Hershey, contrib. by Houston Peterson (multiple formats at archive.org) |
| HF | Commerce (Go to start of category) |
| HF1 .B863 | Business America (full serial archives) |
| HF1 .C38 | Commerce America (full serial archives) |
| HF1 .C42 | Commerce Today (full serial archives) |
| HF1 .D3 | DeBow's Review (partial serial archives) |
| HF1 .M5 | The Merchants' Magazine and Commercial Review (1839-1870) (full serial archives) |
| HF1 .N4 | Nation's Business (partial serial archives) |
| HF53 .U7 | Commerce Yearbook, by United States Bureau of Foreign and Domestic Commerce (full serial archives) |
| HF53 .U72 | Foreign Commerce Yearbook, by United States Bureau of Foreign and Domestic Commerce (full serial archives) |
| HF55 .W5 | A Charter for World Trade (New York: Macmillan, c1949), by Clair Wilcox (page images at HathiTrust) |
| HF81 .M6 1944 | General-Equilibrium Theory in International Trade (Cowles Foundation monograph #7; Bloomington, IN: Principia Press, 1944), by Jacob L. Mosak (PDF at Yale) |
| HF91 .U48 | World Trade Information Service (partial serial archives) |
| HF91 .U482 | Overseas Business Reports (partial serial archives) |
| HF208.5 .A3 | Latvijas Ārejā Tirdznieciba un Tranzits (annual statistical summary of Latvian commerce, in Latvian and French; online volumes for 1920-1922; US access only), by Latvia (partial serial archives) |