APA (7th ed.) Citation

Fischer, E. (1971). The essential Marx (1a. ed.). The Seabury Press.

Chicago Style (17th ed.) Citation

Fischer, Ernst. The Essential Marx. 1a. ed. Nueva York: The Seabury Press, 1971.

MLA (9th ed.) Citation

Fischer, Ernst. The Essential Marx. 1a. ed. The Seabury Press, 1971.