- Shaw, Bernard, 1856-1950 (2)
- Adamson, M.R. (1)
- Afanasʹev, Viktor Grigorʹevich (1)
- Albritton, Robert, 1941- (1)
- Aron, Raymond, 1905- (1)
- Borkenau, Franz, 1900-1957 (1)
- Eastman, Max, 1883-1969 (1)
- Ebenstein, William, 1910- (1)
- Engels, Friedrich, 1820-1895 (1)
- European Consortium for Political Research (1)
- Henry, Michel, 1922- (1)
- Howe, Irving, 1920- (1)
- Hyde, Douglas, b.1911 (1)
- Jacobs, Nicholas (1)
- Kuusinen, O. W. (Otto Wille), 1881-1964 (1)
- Lukács, György, 1885-1971 (1)
- Marcuse, Herbert, 1898-1979 (1)
- Maritain, Jacques, 1882-1973 (1)
- Marx, Karl, 1818-1883 (1)
- Morris, Bernard S. (1)
- Nolte, Ernst, 1923- (1)
- Reeve, Andrew (1)
- Schlesinger, Arthur Meier, 1917- (1)
- Trotsky, Leon, 1879-1940 (1)