Cite

Mammoth-plate photographs of Gold Hill and Virginia City, Nevada [graphic].

MLA

Watkins, Carleton E., 1829-1916. Mammoth-plate photographs of Gold Hill and Virginia City, Nevada [graphic].. ca. 1875.. https://collections.library.yale.edu/catalog/2066809.

APA, 6th edition

Watkins, Carleton E., 1829-1916. (ca. 1875.)[Mammoth-plate photographs of Gold Hill and Virginia City, Nevada [graphic].]. https://collections.library.yale.edu/catalog/2066809.