McGill Library
McLennan Library Building3459 rue McTavish
Montreal, Quebec
H3A 0C9
Canada. Environment Canada.
Delaware River Basin: An Environmental Assessment of Three Centuries of Change
Council on Environmental Quality (U.S.)
Potomac Interim Report to the President
United States. Federal Interdepartmental Task Force on the Potomac.
Nation's Water Resources 1975-2000: Second National Water Assessment
Water Resources Council (U.S.)
Aspen Systems Corporation
Action for Environmental Quality: Standards and Enforcement for Air and Water Pollution Control
United States. Environmental Protection Agency.
United States. Department of the Interior.
Detailed Study Plan to Assess Great Lakes Pollution from Land Use Activities
International Reference Group on Great Lakes Pollution from Land Use Activities
United States. Environmental Protection Agency.