Glacier showing compression layers of ice accumulation, Olympic National Park, date unknown

Chicago citation style
Kirk, Louie. Glacier showing compression layers of ice accumulation, Olympic National Park, date unknown. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/nps/id/1504. (Accessed July 19, 2018.)
APA citation style
Kirk, Louie, Glacier showing compression layers of ice accumulation, Olympic National Park, date unknown. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/nps/id/1504
MLA citation style
Kirk, Louie. Retrieved from the Digital Public Library of America <http://cdm16786.contentdm.oclc.org/cdm/ref/collection/nps/id/1504>.
Note: These citations are programmatically generated and may be incomplete.