Pipsissewa plant, probably in Olympic National Park, date unknown

Chicago citation style
Unknown. Pipsissewa 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/1993. (Accessed April 24, 2018.)
APA citation style
Unknown, Pipsissewa 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/1993
MLA citation style
Unknown. Retrieved from the Digital Public Library of America <http://cdm16786.contentdm.oclc.org/cdm/ref/collection/nps/id/1993>.
Note: These citations are programmatically generated and may be incomplete.