"Richardson's N-Nation Model and the Balance of Power," American Journal of Political Science. 22,2: 364-390, 1978, Box: 9, Folder: 1-2. Personal papers of Philip Schrodt, PP 496. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/114042 Accessed May 18, 2024.