Erdahl, Arlen Inglof, 1931 - . Collection, 1963 – 1970. SMHC Manuscript Collection 146, Southern Minnesota Historical Center, Memorial Library, Minnesota State University, Mankato.

Erdahl, Arlen Inglof, 1931 - . Collection, 1963 – 1970. SMHC Manuscript Collection 146, Southern Minnesota Historical Center, Memorial Library, Minnesota State University, Mankato. https://archivesspace.lib.mnsu.edu/public/repositories/4/resources/634 Accessed April 25, 2024.