Cite

[No. 127: Photograph of dog in encampment]

MLA

[No. 127: Photograph of Dog in Encampment]. 1915. https://collections.library.yale.edu/catalog/11681468.

APA, 6th edition

[No. 127: Photograph of dog in encampment]. (1915). [Photographs, Slides (glass)]. https://collections.library.yale.edu/catalog/11681468.