Us and Them: Social Categorization and the Process of Intergroup Bias
Perdue C, Dovidio J, Gurtman M, Tyler R. Us and Them: Social Categorization and the Process of Intergroup Bias. Journal Of Personality And Social Psychology 1990, 59: 475-486. DOI: 10.1037/0022-3514.59.3.475.Peer-Reviewed Original Research