Duncan Hall building

Chicago citation style
Unknown. Duncan Hall building. Undated. Retrieved from the Digital Public Library of America, http://digitalcollections.sjlibrary.org/cdm/ref/collection/sjsuUA/id/555. (Accessed December 14, 2018.)
APA citation style
Unknown, (Undated) Duncan Hall building. Retrieved from the Digital Public Library of America, http://digitalcollections.sjlibrary.org/cdm/ref/collection/sjsuUA/id/555
MLA citation style
Unknown. Retrieved from the Digital Public Library of America <http://digitalcollections.sjlibrary.org/cdm/ref/collection/sjsuUA/id/555>.
Note: These citations are programmatically generated and may be incomplete.