Olympic Mountains, Olympic National Park, date unknown

Chicago citation style
Wilkerson, John. 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/1029. (Accessed July 21, 2018.)
APA citation style
Wilkerson, John, 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/1029
MLA citation style
Wilkerson, John. Retrieved from the Digital Public Library of America <http://cdm16786.contentdm.oclc.org/cdm/ref/collection/nps/id/1029>.
Note: These citations are programmatically generated and may be incomplete.