MLA

Hughes, Langston, 1902-1967. New York and Cuba Mail Steamship Company. Box 120, folder 2266. 1930 Mar 14. https://collections.library.yale.edu/catalog/32383039.

APA, 6th edition

Hughes, Langston, 1902-1967. (["Box 120, folder 2266"])(1930 Mar 14)[New York and Cuba Mail Steamship Company]. https://collections.library.yale.edu/catalog/32383039.