Water problems of urbanizing areas : proceedings of the research conference, New England College, Henniker, New Hampshire, July 16-21, 1978 / William Whipple, Jr., editor, assisted by Neil Grigg and Richard Lanyon ; organized by the Universities Council on Water Resources and the ASCE Urban Water Resources Research Council ; co-sponsored by Office of Water Research & Technology, U.S. Department of Interior ... [et al.].