Cite

[Photograph of an unidentified mountain view]

MLA

[Photograph of an Unidentified Mountain View]. 0AD. https://collections.library.yale.edu/catalog/2013350.

APA, 6th edition

[Photograph of an unidentified mountain view]. (0 C.E.). [Photographic prints, Photographs]. https://collections.library.yale.edu/catalog/2013350.