Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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