MLA

Damer, Anne Seymour, 1748 or 1749-1828, artist. German officer [art original]. [not after 1767?]. https://collections.library.yale.edu/catalog/33207451.

APA, 6th edition

Damer, Anne Seymour, 1748 or 1749-1828, artist. ([not after 1767?])[German officer [art original]]. https://collections.library.yale.edu/catalog/33207451.