APA (7th ed.) Zitazioa

Marx, K. (1970). Karl Marx and Frederick Engels: Collected: Works.

Chicago Style (17th ed.) Zitazioa

Marx, Karl. Karl Marx and Frederick Engels: Collected: Works. Moscow, 1970.

MLA (9th ed.) Zitazioa

Marx, Karl. Karl Marx and Frederick Engels: Collected: Works. 1970.