Ethnic Background Map of Blue Earth County, Minnesota. Mankato State University Geography Department, 1981. SMHC Manuscript Collection 1338, Southern Minnesota Historical Center, Memorial Library, Minnesota State University, Mankato.

Ethnic Background Map of Blue Earth County, Minnesota. Mankato State University Geography Department, 1981. SMHC Manuscript Collection 1338, Southern Minnesota Historical Center, Memorial Library, Minnesota State University, Mankato. https://archivesspace.lib.mnsu.edu/public/repositories/4/resources/147 Accessed April 28, 2024.