Old Darby and Joan [graphic].
MLA
Old Darby and Joan [Graphic]. Printed for Jno. Bowles & Son at the Black Horse in Cornhill, 0AD. https://collections.library.yale.edu/catalog/10697246.
APA, 6th edition
Old Darby and Joan [graphic]. (0 C.E.). [Genre prints, Engravings England London 1759, Etchings England London 1759, Watermarks (Paper)]. Printed for Jno. Bowles & Son at the Black Horse in Cornhill. https://collections.library.yale.edu/catalog/10697246.