MLA

Trepanning [Graphic]. Published by G. Humphrey, 27 St. James's Street, 0AD. https://collections.library.yale.edu/catalog/10969110.

APA, 6th edition

Trepanning [graphic]. (0 C.E.). [Satires (Visual works) England 1821, Etchings England London 1821, Watermarks (Paper) J Whatman 1826]. Published by G. Humphrey, 27 St. James's Street. https://collections.library.yale.edu/catalog/10969110.