Trees and forest floor, probably the Olympic Peninsula, ca. 1925

Chicago citation style
Murdock, Louis F.. Trees and forest floor, probably the Olympic Peninsula, ca. 1925. ca. 1925. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/wastate/id/2470. (Accessed June 24, 2018.)
APA citation style
Murdock, Louis F., (ca. 1925) Trees and forest floor, probably the Olympic Peninsula, ca. 1925. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/wastate/id/2470
MLA citation style
Murdock, Louis F.. Retrieved from the Digital Public Library of America <http://cdm16786.contentdm.oclc.org/cdm/ref/collection/wastate/id/2470>.
Note: These citations are programmatically generated and may be incomplete.