Cita APA (7th ed.)

Marx, K. (1975). Marx, Engels: Selected correspondence (3rd rev. ed.). Progress.

Cita Chicago (17th ed.)

Marx, Karl. Marx, Engels: Selected Correspondence. 3rd rev. ed. Moscow: Progress, 1975.

Cita MLA (9th ed.)

Marx, Karl. Marx, Engels: Selected Correspondence. 3rd rev. ed. Progress, 1975.