1. & Human behavior; An inventory of scientific findings. New York: Harcourt, 1964.
2. Co-operation and trust: some theoretical notes. In (Ed.), Nebraska symposium on motivation. Lincoln: Univ. of Nebraska Press, 1962, Pp. 275–319.
3. & Bargaining behavior. New York: McGraw-Hill, 1963.
4. Applications of the theory of games to economics. Unpublished A.B. dissertation, Reed College, 1960.