MLA

The Love Letter [Graphic]. Publish'd as the act directs Feby. 10, 1787 by R. Sayer, Printseller, No. 53 Fleet Street, 0AD. https://collections.library.yale.edu/catalog/10728266.

APA, 6th edition

The love letter [graphic]. (0 C.E.). [Genre prints, Mezzotints England London 1787]. Publish'd as the act directs Feby. 10, 1787 by R. Sayer, Printseller, No. 53 Fleet Street. https://collections.library.yale.edu/catalog/10728266.