| Call number | Item |
| H | Social Sciences (Go to start of category) |
| HX | Socialism, Communism, Utopias, Anarchism (Go to start of category) |
| HX1 .A27 | ![[Info]](https://onlinebooks.library.upenn.edu/info.gif) American Appeal (partial serial archives) |
| HX1 .A27 | The Socialist World (from a reprint edition) (full serial archives) |
| HX1 .A6 E58 | The Story of The Appeal, "Unbeaten and Unbeatable": Being the Epic of the Life and Work of the Greatest Political Newspaper in the World (ca. 1915), by George Allan England, contrib. by Charles Lincoln Phifer (page images at HathiTrust) |
| HX1 .C6 | The Class Struggle (New York: Socialist Publication Society, 1917-1919) (full serial archives) |
| HX1 .C65 | The Common Cause (New York: The Social Reform Press, 1912-1913) (full serial archives) |
| HX1 .C7117 | The Communist, contrib. by Communist Party of America (full serial archives) |
| HX1 .C73 | The Comrade: An illustrated Socialist Monthly (partial serial archives) |
| HX1 .D2 | The Dawn, ed. by William Dwight Porter Bliss (partial serial archives) |
| HX1 .D45 | Democratic Left, by Democratic Socialists of America and Democratic Socialist Organizing Committee (U.S.), contrib. by Michael Harrington (full serial archives) |
| HX1 .D58 | Dissent (partial serial archives) |
| HX1 .E93 | The Evolutionist (ran 9 issues, 1909-1910), ed. by Arthur M. Lewis (full serial archives) |
| HX1 .F25 | Fabian Tracts, by Fabian Society (Great Britain) (partial serial archives) |
| HX1 .F5 | Fight (selected issues, 1934-1939), by American League Against War and Fascism (partial serial archives) |
| HX1 .F65 | International Socialist Review (partial serial archives) |
| HX1 .H255 | Hammer and Tongs, by Socialist Party-Social Democratic Federation (partial serial archives) |
| HX1 .L12 | The Intercollegiate Socialist (1913-1919), by Intercollegiate Socialist Society (U.S.) (partial serial archives) |
| HX1 .L12 | The Socialist Review (New York: Intercollegiate Socialist Society, 1919-1921), by Intercollegiate Socialist Society (U.S.) and League for Industrial Democracy (partial serial archives) |
| HX1 .L1313 | The Labor Argus (partial serial archives) |
| HX1 .L26 | Labor Action (1940-1958) (partial serial archives) |
| HX1 .L3 | Labor Age (full serial archives) |
| HX1 .L44 | Left Turn (partial serial archives) |
| HX1 .L5 | The Liberator (US radical labor magazine, 1918-1924) (full serial archives) |
| HX1 .M212 | The Masses (full serial archives) |
| HX1 .M514 | The Militant (partial serial archives) |
| HX1 .M514 | New Militant, by Workers Party of the United States (full serial archives) |