Cite

The Siamese brothers (published by authority) as they appear at the Egyptian Hall. [graphic]

MLA

The Siamese Brothers (Published by Authority) as They Appear at the Egyptian Hall. [Graphic]. Pubd. ( ) by Tregear, 123 Cheapside, 0AD. https://collections.library.yale.edu/catalog/11128788.

APA, 6th edition

The Siamese brothers (published by authority) as they appear at the Egyptian Hall. [graphic]. (0 C.E.). [Satires (Visual works) England 1829, Lithographs England London 1829]. Pubd. ( ) by Tregear, 123 Cheapside. https://collections.library.yale.edu/catalog/11128788.