MLA

Gette, Paul Armand., and Union nationale des etudiants de France creator. Le Mur. 1968. https://collections.library.yale.edu/catalog/2043999.

APA, 6th edition

Gette, P. A., & creator, U. nationale des etudiants de F. (1968). Le mur [Illustrations, Posters]. https://collections.library.yale.edu/catalog/2043999.