MLA

Hughes, Langston, 1902-1967. Carver, George Washington. Box 3 (Oversize), folder 27-28. 1893-1954. https://collections.library.yale.edu/catalog/16195663.

APA, 6th edition

Hughes, Langston, 1902-1967. (["Box 3 (Oversize), folder 27-28"])(1893-1954)[Carver, George Washington]. https://collections.library.yale.edu/catalog/16195663.