1. Quoted by William Olson and Nicholas Onuf in 'The Growth of a Discipline Reviewed', in Steve Smith (ed.), International Relations: British and American Perspectives (Oxford: Basil Blackwell. 1985), p. 5.
2. Ibid, p. 28.
3. Francis A. Beer, Peace Against War: The Ecology of International Violence ( San Francisco: W.H. Freeman and Co., 1981), p. 1,
4. F.S. Northedge, The International Political System (London; Faber and Faber, 1976), p. 282.