1. Agnew's blast at behaviorists. Farm Bureau address, Chicago. Psychology Today, Jan. 1972, 4ff.
2. The open system in personality theory.
3. (Trans. and Adapt.) The way things work, vol. II. New York: Simon & Schuster, 1971.
4. The territorial imperative. New York: Delta, 1966.
5. Design for a brain. New York: Wiley, 1960.