APA (7th ed.) Citation

Marx, K. <. -. 1., & Engels, F. Lettere 1880 - 1883 (marzo).

Chicago Style (17th ed.) Citation

Marx, Karl <1818 - 1883>, and Friedrich Engels. Lettere 1880 - 1883 (marzo).

MLA (8th ed.) Citation

Marx, Karl <1818 - 1883>, and Friedrich Engels. Lettere 1880 - 1883 (marzo).

Warning: These citations may not always be 100% accurate.