Cite

[Group portrait of ten men]

MLA

Trager, George E. [Group Portrait of Ten Men]. 1891. https://collections.library.yale.edu/catalog/2013429.

APA, 6th edition

Trager, G. E. (1891). [Group portrait of ten men] [Albumen prints, Card photographs, Photographic prints, Photographs]. https://collections.library.yale.edu/catalog/2013429.