1. The spectral mapping theorem for one-parameter groups of positive operators on Co(X)
2. The harmonic analysis of automorphism groups
3. and , Abstract Harmonic Analysis, II (Springer-Verlag, New York, 1973).
4. An Introduction to Harmonic Analysis (Dover Publications, New York, 1976).
5. Banach Algebras (Marcel-Dekker Inc., New York, 1973).