Pettyjohn, S. L. (2012). U.S. global defense posture, 1783-2011. RAND.
芝加哥风格引文Pettyjohn, Stacie L. U.S. Global Defense Posture, 1783-2011. Santa Monica, California: RAND, 2012.
MLA引文Pettyjohn, Stacie L. U.S. Global Defense Posture, 1783-2011. RAND, 2012.
警告：这些引文格式不一定是100％准确.