MLA

Hughes, Langston, 1902-1967. Wright, Charles. Box 174, folder 3191. 1959-67. https://collections.library.yale.edu/catalog/17034004.

APA, 6th edition

Hughes, Langston, 1902-1967. (["Box 174, folder 3191"])(1959-67)[Wright, Charles]. https://collections.library.yale.edu/catalog/17034004.