MLA

Les Luttes De Classes. [s.n.], 1967. https://collections.library.yale.edu/catalog/10082164.

APA, 6th edition

Les luttes de classes. (1967). [Covers (Illustrations), Halftones, periodicals (AAT), Photomechanical prints]. [s.n.], https://collections.library.yale.edu/catalog/10082164.