MLA

Humphrey, William, approximately 1740-approximately 1810, printmaker. High life below stairs, or, Mungo addressing himself to my lady's maid [graphic]. 1st Jany. 1772.. https://collections.library.yale.edu/catalog/10715828.

APA, 6th edition

Humphrey, William, approximately 1740-approximately 1810, printmaker. (1st Jany. 1772.)[High life below stairs, or, Mungo addressing himself to my lady's maid [graphic]]. https://collections.library.yale.edu/catalog/10715828.