Mason Lake / [published and distributed by the] Clarkson Map Co.

Chicago citation style
Clarkson Map Co. Mason Lake / [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/7611. (Accessed March 29, 2020.)
APA citation style
Clarkson Map Co, (19??) Mason Lake / [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/7611
MLA citation style
Clarkson Map Co. Retrieved from the Digital Public Library of America <http://collections.lib.uwm.edu/cdm/ref/collection/agdm/id/7611>.
Note: These citations are programmatically generated and may be incomplete.