Snow Dome on Mount Olympus showing ice coring for glacier research, Olympic National Park, date unknown

Chicago citation style
Sharpe, Fred. Snow Dome on Mount Olympus showing ice coring for glacier research, Olympic National Park, date unknown. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/nps/id/1448. (Accessed April 25, 2018.)
APA citation style
Sharpe, Fred, Snow Dome on Mount Olympus showing ice coring for glacier research, Olympic National Park, date unknown. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/nps/id/1448
MLA citation style
Sharpe, Fred. Retrieved from the Digital Public Library of America <http://cdm16786.contentdm.oclc.org/cdm/ref/collection/nps/id/1448>.
Note: These citations are programmatically generated and may be incomplete.