2Charles Beitz,Political Theory and International Relations, Princeton: Princeton University Press, 1999, p. 36.
3Michael Doyle, Ways of War and Peace, New York: W. W. Norton & Company, Inc. ,1997, p. 112.
4Torbjom Knutsen, A History of International Relations Theory, Manchester: Manchester University Press, 1992, p. 86.
5Cornelia Navari, "Hobbes, the State of Nature and the Laws of Nature", in Ian Clark and Iver Neumann eds. , Classical Theories of International Relations, New York: St. Martin's Press,1996, p. 25.
6Hedley Bull," Hobbes and the International Anarchy", in Kai Alderson and Andrew Hurrell eds., Hedley Bull on International Society, New York: St. Martin's Press, 2000, p. 192.
7David Boucher, Political Theories of International Relations, New York: Oxford University Press, 1998, p. 147.
8Michael Doyle, Ways of War and Peace, New York : W. W. Norton & Company, Inc. ,1997, p. 117.
9Hedley Bull, The Anarchical Society, New York: Columbia University Press, 1995, p. 44.
10Kenneth Waltz, Man, the State and War, New York: Columbia University Press, 1959,p. 169.
