Collier, P., Hoeffler, A., & Söderbom, M. (2001). On the Duration of Civil War. World Bank.
Chicagoスタイル(17版)引用形式Collier, P., A. Hoeffler, , M. Söderbom. On the Duration of Civil War. World Bank, 2001.
MLA(9版)引用形式Collier, P., et al. On the Duration of Civil War. World Bank, 2001.
警告: この引用は必ずしも正確ではありません.