1. Տրուխանովսկի Վ. Գ., Ուինսթոն Չերչիլ, Երևան, 1972, էջ 383:
2. Morgenthau H. Politics Among Nations. The Struggle for Power and Place, 1960: N. Y. 4-th, Ed. P. 167.
3. Bebtley, Michael, The Life and Thought of Herbert Butterfield, History, Scince and God, Cambridge University Press, 2011, p. 76-77.
4. Шиллер Ф. История тридцатилетней войны.-М., Мысль, 1970, с.63.
5. Morgenthau Hans J. America’s Stratgy in World Politics: The United States and the Balance of Power, New York, Harcount, Brace and Company, 1948, pp. 220-221.