MLA

Wigstead, Henry. The Tithe Pig [Graphic]. Pubd. Feby. 25, 1786, by H. Brookes, Coventry Street, 0AD. https://collections.library.yale.edu/catalog/11791459.

APA, 6th edition

Wigstead, H. (0 C.E.). The tithe pig [graphic] [Caricature and cartoon, Satires (Visual works) England 1786, Etchings England 1786, Aquatints England 1786]. Pubd. Feby. 25, 1786, by H. Brookes, Coventry Street. https://collections.library.yale.edu/catalog/11791459.