1. (1972) Economic Theory and Operations Analysis, Third Edition.
2. and , (1975) The Theory of Environmental Policy, Prentice-Hall, Englewood Cliffs, NJ.
3. (1989) ‘Coordinated Pollution Control Actions Regulatory Approaches and Enforcement’, Paper Prepared for the World Bank.
4. (1980) The Economic Theory of Pollution Control, The MIT Press, Cambridge, Mass.
5. Pollution control with variable production processes