Pacific Ocean sea stack near Hoh Head, Olympic National Park, date unknown

Chicago citation style
Cahill. Pacific Ocean sea stack near Hoh Head, Olympic National Park, date unknown. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/nps/id/1495. (Accessed July 19, 2018.)
APA citation style
Cahill, Pacific Ocean sea stack near Hoh Head, Olympic National Park, date unknown. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/nps/id/1495
MLA citation style
Cahill. Retrieved from the Digital Public Library of America <http://cdm16786.contentdm.oclc.org/cdm/ref/collection/nps/id/1495>.
Note: These citations are programmatically generated and may be incomplete.