APA (7th ed.) Citation

Walker, D. A. (1979). Iron frontier: The discovery and early development of Minnesota's three ranges. Minnesota Historical Society Press.

Chicago Style (17th ed.) Citation

Walker, David Allan. Iron Frontier: The Discovery and Early Development of Minnesota's Three Ranges. [St. Paul]: Minnesota Historical Society Press, 1979.

MLA (8th ed.) Citation

Walker, David Allan. Iron Frontier: The Discovery and Early Development of Minnesota's Three Ranges. Minnesota Historical Society Press, 1979.