Cite

[Photograph of two men playing checkers outdoors]

MLA

[Photograph of Two Men Playing Checkers Outdoors]. 1959. https://collections.library.yale.edu/catalog/2067672.

APA, 6th edition

[Photograph of two men playing checkers outdoors]. (1959). [Negatives]. https://collections.library.yale.edu/catalog/2067672.