by the Research Corporation of New England ; prepared for U.S. Environmental Protection Agency, Office of Air and Waste Management, Office of Air Quality Planning and Standards
prepared by ICF, Inc. under contract no. AC01-81PE 70274, Scientific Time Sharing Corporation, MTSC Division, under contract no. AC01-79PE 70046 ; prepared for U.S. Department of Energy, Office of Policy, Planning and Analysis, Division of Energy Deregulation