MLA

Dr. Goldsmith [Graphic]. Printed for R. Sayer; No. 53 Fleet Street published as the Act directs, 1AD. https://collections.library.yale.edu/catalog/10966065.

APA, 6th edition

Dr. Goldsmith [graphic]. (1 C.E.). [Portrait prints, Mezzotints England London 1770]. Printed for R. Sayer; No. 53 Fleet Street published as the Act directs. https://collections.library.yale.edu/catalog/10966065.