Letter from W. E. B. Du Bois to Paul Otlet

Chicago citation style
Du Bois, W. E. B. (William Edward Burghardt), 1868-1963. Letter from W. E. B. Du Bois to Paul Otlet. 1921-05-16. Retrieved from the Digital Public Library of America, http://credo.library.umass.edu/view/full/mums312-b019-i031. (Accessed December 15, 2018.)
APA citation style
Du Bois, W. E. B. (William Edward Burghardt), 1868-1963, (1921-05-16) Letter from W. E. B. Du Bois to Paul Otlet. Retrieved from the Digital Public Library of America, http://credo.library.umass.edu/view/full/mums312-b019-i031
MLA citation style
Du Bois, W. E. B. (William Edward Burghardt), 1868-1963. Retrieved from the Digital Public Library of America <http://credo.library.umass.edu/view/full/mums312-b019-i031>.
Note: These citations are programmatically generated and may be incomplete.