Engen, David, 1968-. Oral History Interview, 2007. SMHC Manuscript Collection 1756, Southern Minnesota Historical Center, Memorial Library, Minnesota State University, Mankato.
Engen, David, 1968-. Oral History Interview, 2007. SMHC Manuscript Collection 1756, Southern Minnesota Historical Center, Memorial Library, Minnesota State University, Mankato. https://archivesspace.lib.mnsu.edu/public/repositories/4/resources/353 Accessed November 13, 2024.