MLA

Zebra Rescued, or, A Bridle for the Ass to the Tune of Nancy Dawson / [Graphic]. publisher not identified, 0AD. https://collections.library.yale.edu/catalog/10713067.

APA, 6th edition

Zebra rescued, or, A bridle for the ass to the tune of Nancy Dawson / [graphic]. (0 C.E.). [Caricatures and cartoons, Satires (Visual works) England 1762, Etchings England London 1762, Watermarks (Paper) L V G.]. publisher not identified. https://collections.library.yale.edu/catalog/10713067.