MLA

Meads, A. P. (Alexander P.). Sectional map of the Michigan Copper Range [cartographic material] : from Keweenaw Point to Lake Gogebic, showing the course and boundaries of the copper-bearing formation : also the exact location of the producing mines and those in progress of developme. [1899]. https://collections.library.yale.edu/catalog/16664850.

APA, 6th edition

Meads, A. P. (Alexander P.). ([1899])[Sectional map of the Michigan Copper Range [cartographic material] : from Keweenaw Point to Lake Gogebic, showing the course and boundaries of the copper-bearing formation : also the exact location of the producing mines and those in progress of developme]. https://collections.library.yale.edu/catalog/16664850.