MLA

Madam Philadelphia Saunders [Graphic]. Sold by Alex. Browne at [the] Blew Balcony in Little Queen Street, 0AD. https://collections.library.yale.edu/catalog/16194793.

APA, 6th edition

Madam Philadelphia Saunders [graphic]. (0 C.E.). [Portrait prints, Mezzotints England London 1680]. Sold by Alex. Browne at [the] Blew Balcony in Little Queen Street. https://collections.library.yale.edu/catalog/16194793.