APA (7th ed.) Zitazioa

Marx, K. (1991). Capital: Critique of political economy. Penguin Books.

Chicago Style (17th ed.) Zitazioa

Marx, Karl. Capital: Critique of Political Economy. London: Penguin Books, 1991.

MLA (9th ed.) Zitazioa

Marx, Karl. Capital: Critique of Political Economy. Penguin Books, 1991.