Rotberg, R. I. (1996). Vigilance and vengeance: NGOs preventing ethnic conflict in divided societies. World Peace Foundation.
Citazione stile Chigago Style (17a edizione)Rotberg, Robert I. Vigilance and Vengeance: NGOs Preventing Ethnic Conflict in Divided Societies. Cambridge, Mass: World Peace Foundation, 1996.
Citatione MLA (9a ed.)Rotberg, Robert I. Vigilance and Vengeance: NGOs Preventing Ethnic Conflict in Divided Societies. World Peace Foundation, 1996.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.