1. The authoritarian personality;Adorno,1950
2. Beyond the laboratory: Field research in social psychology;Bickman,1972
3. The Negro Revolution in America;Brink,1964
4. Models and helping: Naturalistic studies in aiding behavior;Bryan;Journal of Personality and Social Psychology,1967
5. Factors relevant to the validity of experiments in social settings;Campbell;Psychological Bulletin,1957