Modern School Mathematics: Algebra I by Dolciani, Wooten, Bekenbach, Jurgensen, and Donnelly, 1967, Box: 19, Folder: 13. Personal Papers of George F. Jenks, PP 474. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/136529 Accessed January 02, 2025.