Four Traction Auto Company, Mankato, MN. Drawings, 1908 -1913. SMHC Manuscript Collection 161, Southern Minnesota Historical Center, Memorial Library, Minnesota State University, Mankato.

Four Traction Auto Company, Mankato, MN. Drawings, 1908 -1913. SMHC Manuscript Collection 161, Southern Minnesota Historical Center, Memorial Library, Minnesota State University, Mankato. https://archivesspace.lib.mnsu.edu/public/repositories/4/resources/279 Accessed May 05, 2024.