"Marxist-Leninist Ethics", Marxism, Communism and Western Society, New York: Herder and Herder, vol. III, pp. 223-228, 1972

"Marxist-Leninist Ethics", Marxism, Communism and Western Society, New York: Herder and Herder, vol. III, pp. 223-228, 1972, Box: 13, Folder: 25. 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/315358 Accessed November 17, 2025.