Cite

Photographs of California, Oregon, and Arizona [graphic].

MLA

Watkins, Carleton E., 1829-1916. Photographs of California, Oregon, and Arizona [graphic].. ca. 1870s.. https://collections.library.yale.edu/catalog/2009707.

APA, 6th edition

Watkins, Carleton E., 1829-1916. (ca. 1870s.)[Photographs of California, Oregon, and Arizona [graphic].]. https://collections.library.yale.edu/catalog/2009707.