Marx K., Engels F., & Lenin V. (1977). Reader in Marxist philosophy: Selected and editor with introduction and notes by Howard Selsam and Harry Martel. New York International Publishing 1977.

Marx K., Engels F, and Lenin V. Reader in Marxist Philosophy: Selected and Editor With Introduction and Notes By Howard Selsam and Harry Martel. New York International Publishing 1977, 1977.

Marx K., Engels F, and Lenin V. Reader in Marxist Philosophy: Selected and Editor With Introduction and Notes By Howard Selsam and Harry Martel. New York International Publishing 1977, 1977.