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edited by Koops , J. . A. (2015). The Oxford handbook of United Nations Peacekeeping: Operations. U.Pr..

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edited by Koops , Joachim A. The Oxford Handbook of United Nations Peacekeeping: Operations. Oxford: U.Pr., 2015.

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edited by Koops , Joachim A. The Oxford Handbook of United Nations Peacekeeping: Operations. U.Pr., 2015.