MLA

Collings, Samuel, and printmaker. Master Billy's Hobby-Horse, or, His Triumphal Entry into Downing Street [Graphic]. Pub. Feb. 26, 1784, by W. Welles, No. 132 Fleet Street, 0AD. https://collections.library.yale.edu/catalog/10727422.

APA, 6th edition

Collings, S., & printmaker. (0 C.E.). Master Billy's hobby-horse, or, His triumphal entry into Downing Street [graphic] [Satires (Visual works) England 1784, Etchings England London 1784]. Pub. Feb. 26, 1784, by W. Welles, No. 132 Fleet Street. https://collections.library.yale.edu/catalog/10727422.