MLA

Ford, Charles Henri, 1908-2002. Villa, José Garcia. Box 2, folder 183. 1947 Mar-Apr. https://collections.library.yale.edu/catalog/17124865.

APA, 6th edition

Ford, Charles Henri, 1908-2002. (["Box 2, folder 183"])(1947 Mar-Apr)[Villa, José Garcia]. https://collections.library.yale.edu/catalog/17124865.