Forest protection activity map as of January 1937

Chicago citation style
Forest protection activity map as of January 1937. 1937. Retrieved from the Digital Public Library of America, http://collections.lib.uwm.edu/cdm/ref/collection/agdm/id/13391. (Accessed December 16, 2019.)
APA citation style
(1937) Forest protection activity map as of January 1937. Retrieved from the Digital Public Library of America, http://collections.lib.uwm.edu/cdm/ref/collection/agdm/id/13391
MLA citation style
Retrieved from the Digital Public Library of America <http://collections.lib.uwm.edu/cdm/ref/collection/agdm/id/13391>.
Note: These citations are programmatically generated and may be incomplete.