Hagen Lake and Mount Constance, Olympic National Park, date unknown

Chicago citation style
Kirk, Ruth W.. Hagen Lake and Mount Constance, Olympic National Park, date unknown. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/nps/id/998. (Accessed September 24, 2018.)
APA citation style
Kirk, Ruth W., Hagen Lake and Mount Constance, Olympic National Park, date unknown. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/nps/id/998
MLA citation style
Kirk, Ruth W.. Retrieved from the Digital Public Library of America <http://cdm16786.contentdm.oclc.org/cdm/ref/collection/nps/id/998>.
Note: These citations are programmatically generated and may be incomplete.