[Wisconsin lake maps / published and distributed by the] Clarkson Map Co.

Chicago citation style
[Wisconsin lake maps / published and distributed by the] Clarkson Map Co.. 19??. Retrieved from the Digital Public Library of America, http://collections.lib.uwm.edu/cdm/ref/collection/agdm/id/9535. (Accessed January 17, 2020.)
APA citation style
(19??) [Wisconsin lake maps / published and distributed by the] Clarkson Map Co.. Retrieved from the Digital Public Library of America, http://collections.lib.uwm.edu/cdm/ref/collection/agdm/id/9535
MLA citation style
Retrieved from the Digital Public Library of America <http://collections.lib.uwm.edu/cdm/ref/collection/agdm/id/9535>.
Note: These citations are programmatically generated and may be incomplete.