MLA

Delestre, Philippe, and artist. [Proof Sheet of Postcard Set Satirizing Medical Specialists] [Graphic]. publisher not identified, 1983, 0AD. https://collections.library.yale.edu/catalog/16047731.

APA, 6th edition

Delestre, P., & artist. (0 C.E.). [Proof sheet of postcard set satirizing medical specialists] [graphic] [Posters, Satires (Visual works), Photomechanical prints]. publisher not identified, 1983. https://collections.library.yale.edu/catalog/16047731.