Horowitz, D. L. (1999). Group loyalty and ethnic violence. In C. Hermann, H. K. Jacobson, & A. S. Moffat (Eds.), VIOLENT CONFLICT IN THE 21ST CENTURY: CAUSES, INSTRUMENTS, AND MITIGATION (pp. 89–110). OAK BROOK, IL: AMER ACAD ARTS & SCI.

Horowitz, D. L. “Group loyalty and ethnic violence.” In VIOLENT CONFLICT IN THE 21ST CENTURY: CAUSES, INSTRUMENTS, AND MITIGATION, edited by C. Hermann, H. K. Jacobson, and A. S. Moffat, 89–110. AMER ACAD ARTS & SCI, 1999.

Horowitz DL. Group loyalty and ethnic violence. In: Hermann C, Jacobson HK, Moffat AS, editors. VIOLENT CONFLICT IN THE 21ST CENTURY: CAUSES, INSTRUMENTS, AND MITIGATION. AMER ACAD ARTS & SCI; 1999. p. 89–110.

Horowitz, D. L. “Group loyalty and ethnic violence.” VIOLENT CONFLICT IN THE 21ST CENTURY: CAUSES, INSTRUMENTS, AND MITIGATION, edited by C. Hermann et al., AMER ACAD ARTS & SCI, 1999, pp. 89–110.

Horowitz DL. Group loyalty and ethnic violence. In: Hermann C, Jacobson HK, Moffat AS, editors. VIOLENT CONFLICT IN THE 21ST CENTURY: CAUSES, INSTRUMENTS, AND MITIGATION. AMER ACAD ARTS & SCI; 1999. p. 89–110.