MLA

Du Bois, W. E. B. (William Edward Burghardt), 1868-1963. Miscellaneous draft pages, typescript and holograph. Box 2, folder 53. n.d.. https://collections.library.yale.edu/catalog/2040344.

APA, 6th edition

Du Bois, W. E. B. (William Edward Burghardt), 1868-1963. (["Box 2, folder 53"])(n.d.)[Miscellaneous draft pages, typescript and holograph]. https://collections.library.yale.edu/catalog/2040344.