Petroglyphs on rock near Ozette Lake

Chicago citation style
Unknown. Petroglyphs on rock near Ozette Lake. ca. 1944. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/nps/id/2426. (Accessed October 16, 2018.)
APA citation style
Unknown, (ca. 1944) Petroglyphs on rock near Ozette Lake. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/nps/id/2426
MLA citation style
Unknown. Retrieved from the Digital Public Library of America <http://cdm16786.contentdm.oclc.org/cdm/ref/collection/nps/id/2426>.
Note: These citations are programmatically generated and may be incomplete.