Klipfel, Thomas R., 1942-. Oral History Interview, 29 January and 3 February 1987. SMHC Manuscript Collection 1465, Southern Minnesota Historical Center, Memorial Library, Minnesota State University, Mankato.

Klipfel, Thomas R., 1942-. Oral History Interview, 29 January and 3 February 1987. SMHC Manuscript Collection 1465, Southern Minnesota Historical Center, Memorial Library, Minnesota State University, Mankato. https://archivesspace.lib.mnsu.edu/public/repositories/4/resources/206 Accessed April 23, 2024.