MLA

Hughes, Langston, 1902-1967. Myerberg, Michael. Box 115, folder 2197. 1950-56. https://collections.library.yale.edu/catalog/32345400.

APA, 6th edition

Hughes, Langston, 1902-1967. (["Box 115, folder 2197"])(1950-56)[Myerberg, Michael]. https://collections.library.yale.edu/catalog/32345400.