| Call number | Item |
| H | Social Sciences (Go to start of category) |
| HX | Socialism, Communism, Utopias, Anarchism (Go to start of category) |
| HX3 .A3 | ![[Info]](https://onlinebooks.library.upenn.edu/info.gif) African Communist (partial serial archives) |
| HX3 .A85 | Australian Marxist Review, by Communist Party of Australia (partial serial archives) |
| HX3 .C758 | The Communist Review (first 2 volumes freely readable online), by Communist Party of Great Britain (partial serial archives) |
| HX3 .F2 | Fabian News, by Fabian Society (Great Britain) (partial serial archives) |
| HX3 .I615 | International Socialism (partial serial archives) |
| HX3 .I69 | International Viewpoint (partial serial archives) |
| HX3 .I695 | Internationalist Notes (partial serial archives) |
| HX3 .M37 | Marxism Today (partial serial archives) |
| HX3 .N49 | New Socialist (Canadian magazine) (partial serial archives) |
| HX3 .R48 | Revolutionary History (partial serial archives) |
| HX3 .S68 | The Socialist Review (London: Independent Labour Party, 1908-1934) (partial serial archives) |
| HX3 .S758 | Socialist Review (Socialist Workers Party publication, 1978-) (partial serial archives) |
| HX3 .S76 | Socialist Standard (partial serial archives) |
| HX3 .T7 | To-Day (British socialist monthly, 1883-1889) (partial serial archives) |
| HX3 .W69 | A World to Win (UK based Marxist-Leninist-Maoist magazine, irregularly published since 1985) (partial serial archives) |
| HX6 .I615 | Die Internationale (reprint volume of 1920 German-language newspaper of the left wing of the Unabhängigen Sozial Demokratischen Partei Deutschlands, which eventually split off to join the Vereinigte Kommunistische Partei Deutschlands; US access only) (full serial archives) |
| HX6 .I618 | Die Internationale: Zeitschrift für Praxis und Theorie des Marxismus (reprint; in German; some early volumes readable online in the US only), contrib. by Rosa Luxemburg and Franz Mehring (partial serial archives) |
| HX8 .B52 | Bi͡ulleten' Oppozit͡sii (in Russian), contrib. by Leon Trotsky (partial serial archives) |
| HX8 .V58 | Filozofski Vestnik (in Slovenian, English, and other languages; 1980-) (full serial archives) |
| HX11 .F2 | Annual Report, by Fabian Society (Great Britain) (partial serial archives) |
| HX11 .I3 | Verhandlungen der Delegirten-Konferenz zu Philadelphia, 15. Juli 1876 (in German; New York: Social-Demokratischen Genosseneschafts, 1876), by International Workingmen's Association (1864-1876) (multiple formats at archive.org) |
| HX11.I35 I5 1977 | Institute for Policy Studies (1977), by Heritage Foundation (Washington, D.C.) |
| HX11 .I45 1869 | Resolutions of the Congress of Geneva, 1866, and the Congress of Brussels, 1868 (London: Printed by the Westminster Printing Co., ca. 1868), by International Workingmen's Association (1864-1876) |
| HX11 .I5 | The Founding Conference of the Fourth International (World Party of the Socialist Revolution): Program and Resolutions (New York: Socialist Workers Party, ca. 1939), by Fourth International (HTML at marxists.org) |
| HX11 .I5 A5 | The Second Congress of the Communist International: Proceedings of Petrograd Session of July 17th, and of Moscow sessions of July 19th-August 7th, 1920 (1921), by Communist International (multiple formats at archive.org) |