MLA

Hughes, Langston, 1902-1967. USSR, Uzbekistan, miscellaneous. Box 460, folder 11126. ca. 1933, n.d.. https://collections.library.yale.edu/catalog/10053341.

APA, 6th edition

Hughes, Langston, 1902-1967. (["Box 460, folder 11126"])(ca. 1933, n.d.)[USSR, Uzbekistan, miscellaneous]. https://collections.library.yale.edu/catalog/10053341.