1. The uncertain search for environmental policy: Scientific fact finding and rational decision making along the Delaware River;Ackerman;University of Pennsylvania Law Review,1972
2. The uncertain search for environmental policy: The costs and benefits of controlling pollution along the Delaware River;Ackerman;University of Pennsylvania Law Review,1973
3. Water for the Cities;Blake,1956
4. Delaware River Basin Commission. 1971. Annual Report. Philadelphia, Pennsylvania. 24 p.
5. Department of Health, Education, and Welfare. 1965. Conference in the matter of pollution of the interstate waters of the Hudson River and its tributaries-New York and New Jersey. Sept. 28, 29, and 30, 1965. Washington, D.C. 2 volumes.