MLA

Van Vechten, Carl, 1880 - 1964. Scott, Zachary. Box 374 | Folder 5379. 1953 March 26. https://collections.library.yale.edu/catalog/10050918.

APA, 6th edition

Van Vechten, Carl, 1880 - 1964. (["Box 374 | Folder 5379"])(1953 March 26)[Scott, Zachary]. https://collections.library.yale.edu/catalog/10050918.