Johnson, James P.
MLA
Hughes, Langston, 1902-1967. Johnson, James P.. Box 92, folder 1733. 1937-50, n.d.. https://collections.library.yale.edu/catalog/33332424.
APA, 6th edition
Hughes, Langston, 1902-1967. (["Box 92, folder 1733"])(1937-50, n.d.)[Johnson, James P.]. https://collections.library.yale.edu/catalog/33332424.