"A Book Note," drafts, typescript and carbon, corrected
MLA
Du Bois, W. E. B. (William Edward Burghardt), 1868-1963. "A Book Note," drafts, typescript and carbon, corrected. Box 3, folder 64. n.d.. https://collections.library.yale.edu/catalog/2040348.
APA, 6th edition
Du Bois, W. E. B. (William Edward Burghardt), 1868-1963. (["Box 3, folder 64"])(n.d.)["A Book Note," drafts, typescript and carbon, corrected]. https://collections.library.yale.edu/catalog/2040348.