National Association for the Advancement of Colored People
MLA
Warren, Robert Penn, 1905-1989. National Association for the Advancement of Colored People. Box 48, folder 948. 1964-65. https://collections.library.yale.edu/catalog/11492772.
APA, 6th edition
Warren, Robert Penn, 1905-1989. (["Box 48, folder 948"])(1964-65)[National Association for the Advancement of Colored People]. https://collections.library.yale.edu/catalog/11492772.