MLA

The Utility of Cork Rumps 1777, [Graphic]. Publish'd the act directs June 9, 1777, by J. Lockington, Shug Lane, Golden Square, 0AD. https://collections.library.yale.edu/catalog/10723116.

APA, 6th edition

The utility of cork rumps 1777, [graphic]. (0 C.E.). [Satires (Visual works) England 1777, Etchings England London 1777, Engravings England London 1777]. Publish'd the act directs June 9, 1777, by J. Lockington, Shug Lane, Golden Square. https://collections.library.yale.edu/catalog/10723116.