Cite

Photographs of Yellowstone National Park [graphic].

MLA

Ingersoll, T. W. (Truman Ward), 1862-1922. Photographs of Yellowstone National Park [graphic].. ca. 1880-1900.. https://collections.library.yale.edu/catalog/2011406.

APA, 6th edition

Ingersoll, T. W. (Truman Ward), 1862-1922. (ca. 1880-1900.)[Photographs of Yellowstone National Park [graphic].]. https://collections.library.yale.edu/catalog/2011406.