Watts, B. D. (1984). The foundations of US air doctrine: The problem of friction in war. Air Univ. Pr.
Chicago Style (17th ed.) CitationWatts, Barry D. The Foundations of US Air Doctrine: The Problem of Friction in War. Maxwell Air Force Base, Ala: Air Univ. Pr, 1984.
MLA (9th ed.) CitationWatts, Barry D. The Foundations of US Air Doctrine: The Problem of Friction in War. Air Univ. Pr, 1984.
Warning: These citations may not always be 100% accurate.