MLA

Eastgate, John, and engraver. Strawberry Hill, Middlesex [Graphic]. 0AD. https://collections.library.yale.edu/catalog/11001474.

APA, 6th edition

Eastgate, J., & engraver. (0 C.E.). Strawberry Hill, Middlesex [graphic] [Etchings England London 1799]. https://collections.library.yale.edu/catalog/11001474.