Sherif, Muzafer 1906-1988 Intergroup Conflict and Cooperation; the Robbers Cave Experiment Warren, Harris Gaylord 1906-1988 Special Operations: AAF Aid To European Resistance Movements, 1943-1945 Warren, Harris Gaylord 1906-1988 Special Operations: AAF Aid To European Resistance Movements, 1943-1945
