Smooth Douglasia plant, probably in Olympic National Park, date unknown

Chicago citation style
Unknown. Smooth Douglasia plant, probably in Olympic National Park, date unknown. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/nps/id/2294. (Accessed June 22, 2018.)
APA citation style
Unknown, Smooth Douglasia plant, probably in Olympic National Park, date unknown. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/nps/id/2294
MLA citation style
Unknown. Retrieved from the Digital Public Library of America <http://cdm16786.contentdm.oclc.org/cdm/ref/collection/nps/id/2294>.
Note: These citations are programmatically generated and may be incomplete.