"A Summary of the Petition to the U.N.," draft, mimeograph, corrected and mimeograph copy
MLA
Du Bois, W. E. B. (William Edward Burghardt), 1868-1963. "A Summary of the Petition to the U.N.," draft, mimeograph, corrected and mimeograph copy. Box 5, folder 112. 1947. https://collections.library.yale.edu/catalog/2040347.
APA, 6th edition
Du Bois, W. E. B. (William Edward Burghardt), 1868-1963. (["Box 5, folder 112"])(1947)["A Summary of the Petition to the U.N.," draft, mimeograph, corrected and mimeograph copy]. https://collections.library.yale.edu/catalog/2040347.