@book{185563,
	author = {Khalilzad, Zalmay. and Project Air Force (U.S.)},
	title = {Sources of conflict in the 21st century :},
	publisher = {Rand,},
	year = {1998.},
	address = {Santa Monica, CA :},
	note = {"Prepared for the United States Air Force."},
	url = {http://www.rand.org/publications/MR/MR897/}
}