1. J.E. Hartshorn, “Oil and the Middle East War,” World Today (April 1968), p. 157.
2. Walter Laqueur, The Struggle for the Middle East (London: Routledge and Kegan Paul, 1969), p. 127.
3. George W. Stocking, Middle East Oil, A Study in Political and Economic Controversy (Nashville, TN: Vanderbilt University Press, 1970), p. 459.
4. James A. Boorman III, “Economic Coercion in International Law: The Arab Oil Weapon and the Ensuing Juridical Issues,” The Journal of International Law and Economics 9 (1974), pp. 207–208. In fact, in 1967, a partial oil embargo was not only imposed on the US but also Britain and West Germany. The action lasted from June 5, 1967 until September 2, 1967.