Blue Glacier and Mount Olympus, Olympic National Park, date unknown

Chicago citation style
Blue Glacier and Mount Olympus, Olympic National Park, date unknown. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/nps/id/1530. (Accessed October 15, 2018.)
APA citation style
Blue Glacier and Mount Olympus, Olympic National Park, date unknown. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/nps/id/1530
MLA citation style
Retrieved from the Digital Public Library of America <http://cdm16786.contentdm.oclc.org/cdm/ref/collection/nps/id/1530>.
Note: These citations are programmatically generated and may be incomplete.