| 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) |
| HE9721.U5 M33 | ![[Info]](https://onlinebooks.library.upenn.edu/info.gif) 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 .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) |
| HF239 .A2 | Annual Statement of the Sea-Borne Trade of British India With the British Empire and Foreign Countries (partial serial archives) |
| HF314 | Recueil Spécial des Actes, Extraits d'Actes, Procès-Verbaux et Documents Relatifs aux Sociétés Commerciales (partial serial archives) |
| HF345 .K54 | Kieler Vorträge (partial serial archives) |
| HF351 .B42 1754 | Lex Mercatoria Rediviva, or, The Merchant's Directory: Being a Compleat Guide to All Men in Business (Dublin: Printed for J. Williams, 1754), by Wyndham Beawes (multiple formats at archive.org) |
| HF351 .B42 1773 | Lex Mercatoria Rediviva, or, The Merchant's Directory: Being a Complete Guide to All Men in Business (6th edition; Dublin: Printed for J. Williams, 1773), by Wyndham Beawes (page images at HathiTrust) |
| HF386 .P42 | The Periplus of the Erythraean Sea: Travel and Trade in the Indian Ocean, by a Merchant of the First Century (New York et al.: Longmans, Green, and Co., 1912), ed. by Wilfred H. Schoff (page images at HathiTrust) |