MLA

Van Vechten, Carl, 1880-1964. Hayes, Afrika. Box 92, folder 1599. 1964 March 24. https://collections.library.yale.edu/catalog/2022912.

APA, 6th edition

Van Vechten, Carl, 1880-1964. (["Box 92, folder 1599"])(1964 March 24)[Hayes, Afrika]. https://collections.library.yale.edu/catalog/2022912.