MLA

Cruikshank, George, 1792-1878, printmaker. Tobacco leaves [graphic]. [1840?]. https://collections.library.yale.edu/catalog/10971593.

APA, 6th edition

Cruikshank, George, 1792-1878, printmaker. ([1840?])[Tobacco leaves [graphic]]. https://collections.library.yale.edu/catalog/10971593.