MLA

Hughes, Langston, 1902-1967. Fisk Jubilee Singers. Box 4 (Oversize), folder 51. 1893-1954. https://collections.library.yale.edu/catalog/16196984.

APA, 6th edition

Hughes, Langston, 1902-1967. (["Box 4 (Oversize), folder 51"])(1893-1954)[Fisk Jubilee Singers]. https://collections.library.yale.edu/catalog/16196984.