MLA

The Family Secret [Graphic]. Published by G.S. Tregear, 96 Cheapside, 0AD. https://collections.library.yale.edu/catalog/10971357.

APA, 6th edition

The family secret [graphic]. (0 C.E.). [Satires (Visual works) England 1834, Lithographs England London 1834]. Published by G.S. Tregear, 96 Cheapside. https://collections.library.yale.edu/catalog/10971357.