Cape Horn, Columbia River, ca. 1870

Chicago citation style
Watkins, Carleton E.. Cape Horn, Columbia River, ca. 1870. 1867. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/stereo/id/187. (Accessed June 18, 2018.)
APA citation style
Watkins, Carleton E., (1867) Cape Horn, Columbia River, ca. 1870. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/stereo/id/187
MLA citation style
Watkins, Carleton E.. Retrieved from the Digital Public Library of America <http://cdm16786.contentdm.oclc.org/cdm/ref/collection/stereo/id/187>.
Note: These citations are programmatically generated and may be incomplete.