ebrary, Inc, & Isely, E. R. (2010). United Nations peacekeeping in the 21st century. Nova Science Publishers.
Citação norma Chicagoebrary, Inc, and Efram R. Isely. United Nations Peacekeeping in the 21st Century. New York: Nova Science Publishers, 2010.
Citação norma MLAebrary, Inc, and Efram R. Isely. United Nations Peacekeeping in the 21st Century. Nova Science Publishers, 2010.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.