Konrad Lohrenz - "Social aggression and its inhibition in animals" October, 1958 (Intro Dr. Karl Menninger - Topeka, Kansas), Box: 7, tape: 37. Personal papers of M. Erik Wright, PP 403. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/630 Accessed December 22, 2024.