Robinson, Thelma and Wilbur
MLA
Hughes, Langston, 1902-1967. Robinson, Thelma and Wilbur. Box 21, folder 299. 1875-1978. https://collections.library.yale.edu/catalog/16207076.
APA, 6th edition
Hughes, Langston, 1902-1967. (["Box 21, folder 299"])(1875-1978)[Robinson, Thelma and Wilbur]. https://collections.library.yale.edu/catalog/16207076.