Icicles on a fir tree, Olympic National Park, date unknown

Chicago citation style
Gurling, Mike. Icicles on a fir tree, Olympic National Park, date unknown. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/nps/id/1718. (Accessed June 25, 2018.)
APA citation style
Gurling, Mike, Icicles on a fir tree, Olympic National Park, date unknown. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/nps/id/1718
MLA citation style
Gurling, Mike. Retrieved from the Digital Public Library of America <http://cdm16786.contentdm.oclc.org/cdm/ref/collection/nps/id/1718>.
Note: These citations are programmatically generated and may be incomplete.