Sherif, Muzafer, O. J. Harvey, William R. Hood, Carolyn W. Sherif, and Jack White. 1961. The Robbers Cave Experiment: Intergroup Conflict and Cooperation. Norman, OK: University of Oklahoma.

This “true life” Lord of the Flies describes a classic experiment by social psychologist Muzafer Sherif in which 24 twelve-year-old boys experience in-group solidarity and out-group hostility on a campground in an Oklahoma state park.