Cite

[Photograph of unnamed companion smoking a pipe and repairing hiking boots in the woods]. 3

MLA

[Photograph of Unnamed Companion Smoking a Pipe and Repairing Hiking Boots in the Woods]. 3. 0AD. https://collections.library.yale.edu/catalog/2015131.

APA, 6th edition

[Photograph of unnamed companion smoking a pipe and repairing hiking boots in the woods]. 3. (0 C.E.). [Photographic prints, Photographs, Stereographs]. https://collections.library.yale.edu/catalog/2015131.