Keen, D. (2012). Useful enemies: When waging wars is more important than winning them. Yale University Press.
Chicago Style (17th ed.) CitationKeen, David. Useful Enemies: When Waging Wars Is More Important than Winning Them. New Haven, CT: Yale University Press, 2012.
MLA (9th ed.) CitationKeen, David. Useful Enemies: When Waging Wars Is More Important than Winning Them. Yale University Press, 2012.
Warning: These citations may not always be 100% accurate.