Chilkoot Trail in Alaska during the summer, circa 1967-1979

Chicago citation style
Clifford, Howard. Chilkoot Trail in Alaska during the summer, circa 1967-1979. ca. 1967-1979. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/alaskawcanada/id/4504. (Accessed October 19, 2018.)
APA citation style
Clifford, Howard, (ca. 1967-1979) Chilkoot Trail in Alaska during the summer, circa 1967-1979. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/alaskawcanada/id/4504
MLA citation style
Clifford, Howard. Retrieved from the Digital Public Library of America <http://cdm16786.contentdm.oclc.org/cdm/ref/collection/alaskawcanada/id/4504>.
Note: These citations are programmatically generated and may be incomplete.