MLA

Cruikshank, Robert, 1789-1856, printmaker. The living skeleton [graphic]. [September 1825]. https://collections.library.yale.edu/catalog/17339091.

APA, 6th edition

Cruikshank, Robert, 1789-1856, printmaker. ([September 1825])[The living skeleton [graphic]]. https://collections.library.yale.edu/catalog/17339091.