MLA

Van Vechten, Carl, 1880 - 1964. Van's house in the country, near Cedar Rapids.. Box v. 32 Shaffer - Stern | Folder Shaffer, Susan & Van Vechten, Mary, Angevine. 1937 October 28. https://collections.library.yale.edu/catalog/10054012.

APA, 6th edition

Van Vechten, Carl, 1880 - 1964. (["Box v. 32 Shaffer - Stern | Folder Shaffer, Susan & Van Vechten, Mary, Angevine"])(1937 October 28)[Van's house in the country, near Cedar Rapids.]. https://collections.library.yale.edu/catalog/10054012.