Ruth Leger Sivard , World Military and Social Expenditures 1987-88 (Washington DC: World Priorities , 1987), pp. 28-31. Some notes on these wars and deaths are given on p. 52.
2.
J. David Singer & Melvin Small, The Wages of War 1816-1965: A Statistical Handbook (NY: Wiley, 1972), pp. 27, 29.
3.
William Eckhardt & Gernot Kohler, 'Structural and Armed Violence in the 20th Century: Magnitudes and Trends', International Interactions , vol. 6 (1980), no. 4, pp. 347-375. Also see William Eckhardt, 'Structural Violence' , Subject to Change, vol. 10 (1983), no. 1, pp. 23-26.
4.
Johan Galtung , 'Violence, Peace, and Peace Research', Journal of Peace Research, vol. 6 ( 1969), no. 3, pp. 167-191.
5.
See G. Bodart, Losses of Life in Modern Wars (Oxford: Clarendon, 1916); S. Dumas & K.O. Vedel-Petersen, Losses of Life Caused by War (Oxford: Clarendon, 1923); R.E. Dupuy & T.N. Dupuy, The Encyclopedia of Military History from 3500 B. C. to the Present (NY : Harper & Row, 1986); G. Dyer, War (NY: Crown, 1985); H.W. Koch, The Rise of Modern Warfare, 1618-1815 (NY: Hamlyn, 1981); F. Prinzing, Epidemics Resulting from Wars (Oxford: Clarendon, 1916). And many encyclopedias: Academic, Americana, Britannica, Collier's, Funk & Wagnalls, International, World Book, plus their annual Yearbooks of Events when available.