Pacific Ocean sunset, probably at Olympic National Park on the Washington coast, date unknown

Chicago citation style
Unknown. Pacific Ocean sunset, probably at Olympic National Park on the Washington coast, date unknown. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/nps/id/1920. (Accessed October 16, 2018.)
APA citation style
Unknown, Pacific Ocean sunset, probably at Olympic National Park on the Washington coast, date unknown. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/nps/id/1920
MLA citation style
Unknown. Retrieved from the Digital Public Library of America <http://cdm16786.contentdm.oclc.org/cdm/ref/collection/nps/id/1920>.
Note: These citations are programmatically generated and may be incomplete.