MLA

O'Hara, Geoffrey, 1882-1967. Two white men standing outside the door to the Hubbell Trading Post at Ganado, Az. Box 1, folder 16. circa 1913-1914. https://collections.library.yale.edu/catalog/2065281.

APA, 6th edition

O'Hara, Geoffrey, 1882-1967. (["Box 1, folder 16"])(circa 1913-1914)[Two white men standing outside the door to the Hubbell Trading Post at Ganado, Az]. https://collections.library.yale.edu/catalog/2065281.