Psychological purposes served by war: three perspectives.
Kirkland
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FR
D006663:Historiography; D049673:History, 20th Century; D049690:History, Ancient; D049692:History, Early Modern 1451-1600; D049691:History, Medieval; D049711:History, Modern 1601-; D001523:Mental Disorders; D011584:Psychology; D014857:Warfare