APA (7th ed.) Zitazioa

Marx, K. (1986). Karl Marx the essential writings. Westview Pr.

Chicago Style (17th ed.) Zitazioa

Marx, Karl. Karl Marx the Essential Writings. Boulder: Westview Pr, 1986.

MLA (9th ed.) Zitazioa

Marx, Karl. Karl Marx the Essential Writings. Westview Pr, 1986.