Cite

Painting of Mexican War battle

MLA

Sully, Alfred, 1821-1879. Painting of Mexican War battle. Box 9 (Oversize), folder 139. n.d.. https://collections.library.yale.edu/catalog/10268311.

APA, 6th edition

Sully, Alfred, 1821-1879. (["Box 9 (Oversize), folder 139"])(n.d.)[Painting of Mexican War battle]. https://collections.library.yale.edu/catalog/10268311.