MLA

Goodnight, C., and printmaker. The London Poppers [Graphic]. Printed for Jno. Smith, No. 35 Cheapside, 0AD. https://collections.library.yale.edu/catalog/10731102.

APA, 6th edition

Goodnight, C., & printmaker. (0 C.E.). The London poppers [graphic] [Satires (Visual works) England 1789, Engravings England London 1789, Etchings England London 1789]. Printed for Jno. Smith, No. 35 Cheapside. https://collections.library.yale.edu/catalog/10731102.