MLA

Bartolomeo Bergami [Art Original]. 0AD. https://collections.library.yale.edu/catalog/16704461.

APA, 6th edition

Bartolomeo Bergami [art original]. (0 C.E.). [Portraits, Ink drawings British 19th century, Wash drawings British 19th century]. https://collections.library.yale.edu/catalog/16704461.