Cite

[Photograph of three men with a horse in front of log cabin]

MLA

[Photograph of Three Men with a Horse in Front of Log Cabin]. 1915. https://collections.library.yale.edu/catalog/11683446.

APA, 6th edition

[Photograph of three men with a horse in front of log cabin]. (1915). [Photographs, Slides (glass)]. https://collections.library.yale.edu/catalog/11683446.