Alfred A. Knopf, Inc.
MLA
Hughes, Langston, 1902-1967. Alfred A. Knopf, Inc.. Box 5, folder 82-94. 1950-67, n.d.. https://collections.library.yale.edu/catalog/33089762.
APA, 6th edition
Hughes, Langston, 1902-1967. (["Box 5, folder 82-94"])(1950-67, n.d.)[Alfred A. Knopf, Inc.]. https://collections.library.yale.edu/catalog/33089762.