"An Investigation of Cull Apples in Missouri" Masters Thesis, University of Missouri, 1929

"An Investigation of Cull Apples in Missouri" Masters Thesis, University of Missouri, 1929, Box: 4897, Object: 03. G. Carl Schowengerdt Collection, 2008.061. Special Collections and Archives. https://archivesspace.semo.edu/repositories/2/archival_objects/25015 Accessed October 14, 2026.