Water and rockfall from Blue Glacier, Olympic National Park, date unknown

Chicago citation style
Unknown. Water and rockfall from Blue Glacier, Olympic National Park, date unknown. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/nps/id/1281. (Accessed October 21, 2018.)
APA citation style
Unknown, Water and rockfall from Blue Glacier, Olympic National Park, date unknown. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/nps/id/1281
MLA citation style
Unknown. Retrieved from the Digital Public Library of America <http://cdm16786.contentdm.oclc.org/cdm/ref/collection/nps/id/1281>.
Note: These citations are programmatically generated and may be incomplete.