MLA

Kassák Lajos. Ma. [s.n.], 1921. https://collections.library.yale.edu/catalog/10186895.

APA, 6th edition

Kassák Lajos. (1921). Ma. [Illustrations, Periodicals, prints: linocuts (AAT)]. [s.n.], https://collections.library.yale.edu/catalog/10186895.