Marx, K. H., & Engels, F. (1972). Correspondencia. Cartago.
Chicago Style (17th ed.) CitationMarx, Karl Heinrich, and Friedrich Engels. Correspondencia. Buenos Aires: Cartago, 1972.
MLA (9th ed.) CitationMarx, Karl Heinrich, and Friedrich Engels. Correspondencia. Cartago, 1972.
Warning: These citations may not always be 100% accurate.