Classroom in Old Main

Chicago citation style
Unknown. Classroom in Old Main. 1893. Retrieved from the Digital Public Library of America, http://collections.carli.illinois.edu/cdm/ref/collection/sic_photos/id/2831. (Accessed December 14, 2018.)
APA citation style
Unknown, (1893) Classroom in Old Main. Retrieved from the Digital Public Library of America, http://collections.carli.illinois.edu/cdm/ref/collection/sic_photos/id/2831
MLA citation style
Unknown. Retrieved from the Digital Public Library of America <http://collections.carli.illinois.edu/cdm/ref/collection/sic_photos/id/2831>.
Note: These citations are programmatically generated and may be incomplete.