MLA

Hughes, Langston, 1902-1967. Amis, Lola Jones. Box 7, folder 152. 1967 Jan 24. https://collections.library.yale.edu/catalog/32585225.

APA, 6th edition

Hughes, Langston, 1902-1967. (["Box 7, folder 152"])(1967 Jan 24)[Amis, Lola Jones]. https://collections.library.yale.edu/catalog/32585225.