Johnston, John B, G. Baley Price, and Fred S. Van Vleck. An Introduction to Mathematics, Volume 1, Part 2, Lawrence, KS : University of Kansas, 1963. Personal papers of G. Baley Price, PP 523. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/127544 Accessed January 03, 2025.