MLA

The Theatrical Contest 1743 [Graphic]. Publish'd according to act of Parliament, Octobr. 24th 1743 by G. Foster at the White Horse on Ludgate Hill, 0AD. https://collections.library.yale.edu/catalog/10700441.

APA, 6th edition

The theatrical contest 1743 [graphic]. (0 C.E.). [Caricatures and cartoons, Satires (Visual works) England 1743, Etchings England London 1743]. Publish'd according to act of Parliament, Octobr. 24th 1743 by G. Foster at the White Horse on Ludgate Hill. https://collections.library.yale.edu/catalog/10700441.