Dust jacket
MLA
Warren, Robert Penn, 1905-1989. Dust jacket. Box 186, folder 3289. n.d.. https://collections.library.yale.edu/catalog/2004629.
APA, 6th edition
Warren, Robert Penn, 1905-1989. (["Box 186, folder 3289"])(n.d.)[Dust jacket]. https://collections.library.yale.edu/catalog/2004629.