MLA

Belafonte, Harry, 1927-. Belafonte, Harry. Box 2 | Folder 51. 1954. https://collections.library.yale.edu/catalog/17049336.

APA, 6th edition

Belafonte, Harry, 1927-. (["Box 2 | Folder 51"])(1954)[Belafonte, Harry]. https://collections.library.yale.edu/catalog/17049336.