1. Temporal comparison theory.
2. (1954). The nature of prejudice. Reading, MA: Addison-Wesley.
3. & (1982). Intergroup perceptions in British Higher Education: a field study. In (Ed.), Social identity and intergroup relations (pp. 423-468). Cambridge: Cambridge University Press.
4. The effects of intergroup similarity and cooperative vs. competitive orientation on intergroup discrimination
5. Group Identification: The Same Thing to All People?