MLA

Hughes, Langston, 1902-1967. Hill, Ella. Box 5 (Oversize), folder 63. 1893-1954. https://collections.library.yale.edu/catalog/16198511.

APA, 6th edition

Hughes, Langston, 1902-1967. (["Box 5 (Oversize), folder 63"])(1893-1954)[Hill, Ella]. https://collections.library.yale.edu/catalog/16198511.