Cite

[No. 79: Photograph of mountain range]

MLA

[No. 79: Photograph of Mountain Range]. 1915. https://collections.library.yale.edu/catalog/11680133.

APA, 6th edition

[No. 79: Photograph of mountain range]. (1915). [Photographs, Slides (glass)]. https://collections.library.yale.edu/catalog/11680133.