"Kunitz, J. (1973). Karl Marx and Fredrich Engels: An introduction to their lives and work. Monthly review.
Style de citation Chicago (17e éd.)"Kunitz, Joshus. Karl Marx and Fredrich Engels: An Introduction to Their Lives and Work. Monthly review, 1973.
Style de citation MLA (9e éd.)"Kunitz, Joshus. Karl Marx and Fredrich Engels: An Introduction to Their Lives and Work. Monthly review, 1973.
Attention : ces citations peuvent ne pas être correctes à 100%.