Cite

Lady Friz at her toilet [graphic].

MLA

Lady Friz at Her Toilet [Graphic]. Sold by W. Humphrey, No. 227 Strand, 0AD. https://collections.library.yale.edu/catalog/10723340.

APA, 6th edition

Lady Friz at her toilet [graphic]. (0 C.E.). [Genre prints England 1780, Mezzotints England London 1780]. Sold by W. Humphrey, No. 227 Strand. https://collections.library.yale.edu/catalog/10723340.