MLA

Cham, 1819-1879, printmaker. Études comiques sur le magnétisme [graphic]. [not after 1879]. https://collections.library.yale.edu/catalog/17339812.

APA, 6th edition

Cham, 1819-1879, printmaker. ([not after 1879])[Études comiques sur le magnétisme [graphic]]. https://collections.library.yale.edu/catalog/17339812.