MLA

Bergami Pears, or, Choice Fruit!! [Graphic]. Pubd. by S.W. Fores, Piccadilly No. 41, 0AD. https://collections.library.yale.edu/catalog/33246096.

APA, 6th edition

Bergami pears, or, Choice fruit!! [graphic]. (0 C.E.). [Caricatures and cartoons, Trials, litigation, etc, Satires (Visual works) England 1820, Etchings England London 1820, Annotations (Provenance) 19th century, Watermarks (Paper) Weatherley & Lane 1820]. Pubd. by S.W. Fores, Piccadilly No. 41. https://collections.library.yale.edu/catalog/33246096.