APA (7th ed.) Zitazioa

Marx, K. (1975). Karl Marx Frederick Engels: Collected works. Progress.

Chicago Style (17th ed.) Zitazioa

Marx, Karl. Karl Marx Frederick Engels: Collected Works. Moscow: Progress, 1975.

MLA (9th ed.) Zitazioa

Marx, Karl. Karl Marx Frederick Engels: Collected Works. Progress, 1975.