1.
|
Washington : U.S. Government Publishing Office, 2017.
|
2.
|
Denton, Tex. : University of North Texas Press, c2010.
|
3.
|
Santa Monica, CA : RAND, 2006.
|
4.
|
Santa Monica, CA : RAND, Project Air Force, c2002.
|
5.
|
Tuscaloosa, Ala. : University of Alabama Press, c2009.
|
6.
|
Santa Monica, CA : RAND Corp., 2006.
|
7.
|
Santa Monica, CA : Rand, 1999.
|