Related Citations
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Sheldon, John B. "A Really Hard Case: Iranian Space Ambitions and the Prospects for U.S. Engagement." Astropolitics. Vol. 4, No. 2 (Summer 2006): 229-251. [ 3 quotes ]
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Sheldon, John B. "Space as the Fourth Environment." Rusi Journal. Vol. 144, No. 5 (October 1999): 51-56.
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Sheldon, John B. Space Power and Deterrence: Are We Serious?. Washington, D.C.: George C. Marshall Institute, .
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Sheldon, John B. and Robert Butterworth. Deterrence in Space: Responding to Challenges to the U.S. in Outer Space. Washington, D.C.: George C. Marshall Institute, November 13, 2008. [ 5 quotes ]
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