MLA

Van Vechten, Carl, 1880-1964. Bernstein, Aline, at her home in Armonk, New York. Box 336 | Folder 4237. 1947 August 31. https://collections.library.yale.edu/catalog/2030798.

APA, 6th edition

Van Vechten, Carl, 1880-1964. (["Box 336 | Folder 4237"])(1947 August 31)[Bernstein, Aline, at her home in Armonk, New York]. https://collections.library.yale.edu/catalog/2030798.