MLA

Hazeltine, M. M. Sierra Buttes Mines. 0AD. https://collections.library.yale.edu/catalog/2016749.

APA, 6th edition

Hazeltine, M. M. (0 C.E.). Sierra Buttes Mines [Card photographs, Photographic prints, Photographs, Stereographs]. https://collections.library.yale.edu/catalog/2016749.