MLA

A Rain Beau [Graphic]. Pub. May 5, 1790, by S.W. Fores, No. 3 Piccadilly, 0AD. https://collections.library.yale.edu/catalog/10731269.

APA, 6th edition

A rain beau [graphic]. (0 C.E.). [Satires (Visual works) England 1790, Etchings England London 1790]. Pub. May 5, 1790, by S.W. Fores, No. 3 Piccadilly. https://collections.library.yale.edu/catalog/10731269.