MLA

Van Vechten, Carl, 1880-1964. Thomas, Edna. Box 106 | Folder 1926. 1932 June 18. https://collections.library.yale.edu/catalog/2005365.

APA, 6th edition

Van Vechten, Carl, 1880-1964. (["Box 106 | Folder 1926"])(1932 June 18)[Thomas, Edna]. https://collections.library.yale.edu/catalog/2005365.