1. 1966.Webster's Third New International Dictionary, 843Springfield, Massachusetts: G. & C. Merriam. unabridged
2. Gellhorn, Walter and Byse, Clark. 1970.Administrative Law: Cases and Comments, 5th ed., 5–6. Mineola, New York: The Foundation Press.
3. Kruger, Arthur N. 1960.Modern Debate: Its Logic and Strategy, 27New York: McGraw‐Hill.