"Anarchism and Authority", Anarchism (Nomos, XIX) ed. J. Roland Pennock and John W. Chapman, New York: New York University Press, pp. 91-110, 1978

"Anarchism and Authority", Anarchism (Nomos, XIX) ed. J. Roland Pennock and John W. Chapman, New York: New York University Press, pp. 91-110, 1978, Box: 13, Folder: 36. Personal papers of Richard T. De George, PP 531. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/315369 Accessed December 25, 2025.