Cite

[Photograph of a pack crew and a wagon; photographer's shadow cast on the ground]

MLA

[Photograph of a Pack Crew and a Wagon; Photographer's Shadow Cast on the Ground]. 0AD. https://collections.library.yale.edu/catalog/2014079.

APA, 6th edition

[Photograph of a pack crew and a wagon; photographer's shadow cast on the ground]. (0 C.E.). [Photographic prints, Photographs, Snapshots]. https://collections.library.yale.edu/catalog/2014079.