Churchman, D. (2013). Why we fight: The origins, nature, and management of human conflict (2nd ed.). University Press of America.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)Churchman, David. Why We Fight: The Origins, Nature, and Management of Human Conflict. 2nd ed. Lanham, Md.: University Press of America, 2013.
MLA -ийн эшлэл (9 дэх хэвлэлт)Churchman, David. Why We Fight: The Origins, Nature, and Management of Human Conflict. 2nd ed. University Press of America, 2013.
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