MLA

Van Vechten, Carl, 1880-1964. Robeson, Paul. Box 103 | Folder 1853. 1936 January 10. https://collections.library.yale.edu/catalog/2027450.

APA, 6th edition

Van Vechten, Carl, 1880-1964. (["Box 103 | Folder 1853"])(1936 January 10)[Robeson, Paul]. https://collections.library.yale.edu/catalog/2027450.