MLA

Van Vechten, Carl, 1880-1964. Johnson, Louis. Box 111 | Folder 2109. 1955 June 26. https://collections.library.yale.edu/catalog/2025658.

APA, 6th edition

Van Vechten, Carl, 1880-1964. (["Box 111 | Folder 2109"])(1955 June 26)[Johnson, Louis]. https://collections.library.yale.edu/catalog/2025658.