Cite

[Photographs of South Dakota and Wyoming].

MLA

Locke, H. R., and photographer. [Photographs of South Dakota and Wyoming]. 0AD. https://collections.library.yale.edu/catalog/2011957.

APA, 6th edition

Locke, H. R., & photographer. (0 C.E.). [Photographs of South Dakota and Wyoming]. [Portraits, Pictorial works, Card photographs (photographs), Photographic prints, Photographs]. https://collections.library.yale.edu/catalog/2011957.