1.
|
Lincoln : Potomac Books, an imprint of the University of Nebraska Press, [2014] ©2014
|
2.
|
Philadelphia : University of Pennsylvania Press, [2015] ©2015
|
3.
|
Lanham, Maryland : Lexington Books, [2012] ©2012
|
4.
|
Baltimore : Johns Hopkins University Press, 2010.
|
5.
|
Stanford, California : Stanford Security Studies, 2015. ©2015
|
6.
|
Santa Monica, Calif. : RAND, 2011.
|