Colonel Sargent with his horse

Chicago citation style
Colonel Sargent with his horse. Retrieved from the Digital Public Library of America, http://digital.smpl.org/cdm/ref/collection/smarchive/id/30. (Accessed December 13, 2018.)
APA citation style
Colonel Sargent with his horse. Retrieved from the Digital Public Library of America, http://digital.smpl.org/cdm/ref/collection/smarchive/id/30
MLA citation style
Retrieved from the Digital Public Library of America <http://digital.smpl.org/cdm/ref/collection/smarchive/id/30>.
Note: These citations are programmatically generated and may be incomplete.