Cite

[Photograph of two unidentified men outside of the Beinecke]

MLA

Stoller, Ezra. [Photograph of Two Unidentified Men Outside of the Beinecke]. 0AD. https://collections.library.yale.edu/catalog/2009992.

APA, 6th edition

Stoller, E. (0 C.E.). [Photograph of two unidentified men outside of the Beinecke] [Photographic prints, Photographs]. https://collections.library.yale.edu/catalog/2009992.