1. Introduction to Matrix Analysis (McGraw-Hill, New York, 1960).
2. and , Finite Markov Chains (Van Nostrand, Prinecton, NJ, 1960).
3. “Probability Distribution of Phase Type,” in Liber Amicorum Professor Emeritus H. Florin, pp. 173–206, (Department of Mathematics, University of Louvain, Belgium, 1975).
4. Computational uses of the method of phases in the theory of queues
5. Computational Problems Related to the Galton-Watson Process forthcoming in the Proceedings of an Actuarial Research Conference held at Brown University, Providence, RI, in 1975.