Cite

[Photograph of a man and a woman standing on opposite sides of a creek]

MLA

[Photograph of a Man and a Woman Standing on Opposite Sides of a Creek]. 0AD. https://collections.library.yale.edu/catalog/2014121.

APA, 6th edition

[Photograph of a man and a woman standing on opposite sides of a creek]. (0 C.E.). [Photographic prints, Photographs, Snapshots]. https://collections.library.yale.edu/catalog/2014121.