MLA

Kilpatrick, Jack Frederick (1915-1967). Cherokee Co. Tomatla N. C. Letter about treatment of Cherokees (east). Box 17, folder 1441. 1931 January 4. https://collections.library.yale.edu/catalog/15532145.

APA, 6th edition

Kilpatrick, Jack Frederick (1915-1967). (["Box 17, folder 1441"])(1931 January 4)[Cherokee Co. Tomatla N. C. Letter about treatment of Cherokees (east)]. https://collections.library.yale.edu/catalog/15532145.