Glacial cirque in the Olympic Mountains, Olympic National Park, date unknown

Chicago citation style
Unknown. Glacial cirque in the Olympic Mountains, Olympic National Park, date unknown. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/nps/id/1278. (Accessed August 19, 2018.)
APA citation style
Unknown, Glacial cirque in the Olympic Mountains, Olympic National Park, date unknown. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/nps/id/1278
MLA citation style
Unknown. Retrieved from the Digital Public Library of America <http://cdm16786.contentdm.oclc.org/cdm/ref/collection/nps/id/1278>.
Note: These citations are programmatically generated and may be incomplete.