South Central Minnesota Department of Transportation. Collection, 1965-1994. SMHC Collection 0248, Southern Minnesota Historical Center, Memorial Library, Minnesota State University, Mankato.

South Central Minnesota Department of Transportation. Collection, 1965-1994. SMHC Collection 0248, Southern Minnesota Historical Center, Memorial Library, Minnesota State University, Mankato. https://archivesspace.lib.mnsu.edu/public/repositories/4/resources/433 Accessed February 05, 2025.