Erosion on the Washington coast, probably in Olympic National Park, date unknown

Chicago citation style
Gurling, Mike. Erosion on the Washington coast, probably in Olympic National Park, date unknown. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/nps/id/1731. (Accessed July 16, 2018.)
APA citation style
Gurling, Mike, Erosion on the Washington coast, probably in Olympic National Park, date unknown. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/nps/id/1731
MLA citation style
Gurling, Mike. Retrieved from the Digital Public Library of America <http://cdm16786.contentdm.oclc.org/cdm/ref/collection/nps/id/1731>.
Note: These citations are programmatically generated and may be incomplete.