Cite

Pennsylvania Hospital for the Insane Department for males / [graphic]

MLA

Butler, J. M. (John M.), printmaker. Pennsylvania Hospital for the Insane Department for males / [graphic]. [19th century]. https://collections.library.yale.edu/catalog/17339010.

APA, 6th edition

Butler, J. M. (John M.), printmaker. ([19th century])[Pennsylvania Hospital for the Insane Department for males / [graphic]]. https://collections.library.yale.edu/catalog/17339010.