MLA

Van Vechten, Carl, 1880-1964. Anderson, Judith, and B. H. (Benjamin Harrison) Lehman. Box 331 | Folder 4107. 1937 June 2. https://collections.library.yale.edu/catalog/2029758.

APA, 6th edition

Van Vechten, Carl, 1880-1964. (["Box 331 | Folder 4107"])(1937 June 2)[Anderson, Judith, and B. H. (Benjamin Harrison) Lehman]. https://collections.library.yale.edu/catalog/2029758.