MLA

The Tottering Pyramid [Graphic]. Publish'd April [the] 11, 1784, by G. Humphrey print seller, No. 48 Long Acre, London, 0AD. https://collections.library.yale.edu/catalog/10727496.

APA, 6th edition

The tottering pyramid [graphic]. (0 C.E.). [Caricatures and cartoons, Satires (Visual works) England 1784, Etchings England London 1784]. Publish'd April [the] 11, 1784, by G. Humphrey print seller, No. 48 Long Acre, London. https://collections.library.yale.edu/catalog/10727496.