MLA

McClintock, Walter, 1870-1949. 576. [Two Blackfeet Women Skinning Animal, with Natoye Watching. Near Walter McClintock's Lodge on a Snow-covered Landscape.].. Box 64, folder 3312. 1947. https://collections.library.yale.edu/catalog/2008871.

APA, 6th edition

McClintock, Walter, 1870-1949. (["Box 64, folder 3312"])(1947)[576. [Two Blackfeet Women Skinning Animal, with Natoye Watching. Near Walter McClintock's Lodge on a Snow-covered Landscape.].]. https://collections.library.yale.edu/catalog/2008871.