MLA

Van Vechten, Carl, 1880-1964. O'Keeffe, Georgia. Box 370, folder 5242. 1935 February 22. https://collections.library.yale.edu/catalog/2109569.

APA, 6th edition

Van Vechten, Carl, 1880-1964. (["Box 370, folder 5242"])(1935 February 22)[O'Keeffe, Georgia]. https://collections.library.yale.edu/catalog/2109569.