APA (7th ed.) Citation

(1971). Karl Marx, Friedrich Engels. Union générale d'Éditions.

Chicago Style (17th ed.) Citation

Karl Marx, Friedrich Engels. Union générale d'Éditions, 1971.

MLA (8th ed.) Citation

Karl Marx, Friedrich Engels. Union générale d'Éditions, 1971.

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