Hewstone, M., Islam, M., & Judd, C. (1993). Models of crossed categorization and intergroup relations.
Lua i Stíl Chicago (17ú heag.)Hewstone, M., MR Islam, agus C. Judd. Models of Crossed Categorization and Intergroup Relations. 1993.
Lua MLA (9ú heag.)Hewstone, M., et al. Models of Crossed Categorization and Intergroup Relations. 1993.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.