MLA

Van Vechten, Carl, 1880-1964. De Lamar, Alice Antoinette. Box 343 | Folder 4458. 1932 May 2. https://collections.library.yale.edu/catalog/2032490.

APA, 6th edition

Van Vechten, Carl, 1880-1964. (["Box 343 | Folder 4458"])(1932 May 2)[De Lamar, Alice Antoinette]. https://collections.library.yale.edu/catalog/2032490.