MLA

Van Vechten, Carl, 1880-1964. Dalí, Salvador. Box 343, folder 4441. 1934 November 29. https://collections.library.yale.edu/catalog/2032370.

APA, 6th edition

Van Vechten, Carl, 1880-1964. (["Box 343, folder 4441"])(1934 November 29)[Dalí, Salvador]. https://collections.library.yale.edu/catalog/2032370.