1. Kissinger Henry A., The Troubled Partnership: A Reappraisal of the Atlantic Alliance (New York: McGraw Hill, 1965, p. 205
2. Marcum John A., Marcum John A., The Politics of Indifference: Portugal and Africa, A Case Study In American Foreign Policy, Eastern African Studies V. Maxwell School of Citizenship and Public Affairs, Syracuse University, March 9, 1972, p. 24.
3. For more information, see Southern Africa: Proposals for Americans, p. 22, United Nations Association of USA, New York, 1971.