Forest protection activity map as of May 1, 1938

Chicago citation style
Forest protection activity map as of May 1, 1938. 1938. Retrieved from the Digital Public Library of America, http://collections.lib.uwm.edu/cdm/ref/collection/agdm/id/13393. (Accessed December 10, 2019.)
APA citation style
(1938) Forest protection activity map as of May 1, 1938. Retrieved from the Digital Public Library of America, http://collections.lib.uwm.edu/cdm/ref/collection/agdm/id/13393
MLA citation style
Retrieved from the Digital Public Library of America <http://collections.lib.uwm.edu/cdm/ref/collection/agdm/id/13393>.
Note: These citations are programmatically generated and may be incomplete.