Preska, Margaret R., 1938-2021. Oral History Interview, 2012. SMHC Collection 0265, Southern Minnesota Historical Center, Memorial Library, Minnesota State University, Mankato.

Preska, Margaret R., 1938-2021. Oral History Interview, 2012. SMHC Collection 0265, Southern Minnesota Historical Center, Memorial Library, Minnesota State University, Mankato. https://archivesspace.lib.mnsu.edu/public/repositories/4/resources/125 Accessed January 13, 2025.