Cite

Crest of the Great Western Divide. 125

MLA

Crest of the Great Western Divide. 125. 0AD. https://collections.library.yale.edu/catalog/2015535.

APA, 6th edition

Crest of the Great Western Divide. 125. (0 C.E.). [Photographic prints, Photographs, Stereographs]. https://collections.library.yale.edu/catalog/2015535.