MLA

Mr. Rock as the Irishman in Rosina. Pub'd Jany. 1, 1787, by S.W. Fores at the Caricature Warehouse, No.3 Piccadilly, 0AD. https://collections.library.yale.edu/catalog/10728238.

APA, 6th edition

Mr. Rock as the Irishman in Rosina. (0 C.E.). [Caricatures and cartoons, Satires (Visual works) England 1787, Etchings England London 1787, Watermarks (Paper)]. Pub'd Jany. 1, 1787, by S.W. Fores at the Caricature Warehouse, No.3 Piccadilly. https://collections.library.yale.edu/catalog/10728238.