MLA

Swallowing a Pill [Graphic]. Pub. Jany. 8th, 1827, by T. Gillard, 40 Strand, 0AD. https://collections.library.yale.edu/catalog/17339195.

APA, 6th edition

Swallowing a pill [graphic]. (0 C.E.). [Satires (Visual works) England 1827, Aquatints England London 1827, Etchings England London 1827, Watermarks (Paper)]. Pub. Jany. 8th, 1827, by T. Gillard, 40 Strand. https://collections.library.yale.edu/catalog/17339195.