prepared by the Planning and Design Policy Committee of the American Association of State Highway Officials at the request of the Bureau of Public Roads
edited by Edward Helminski and Joanna Mack ; sponsored by the National Conference of State Legislatures, Committee on Science and Technology ... [and others]
proceedings, ASCE Irrigation and Drainage Division and ASCE Water Resources Planning and Management Division Specialty Conference, Donaldson Brown Center for Continuing Education, Virginia Polytechnic Institute and State University, July 26-28, 1978 ; sponsors, Irrigation and Drainage Division and Water Resources Planning and Management Division of the American Society of Civil Engineers, Virginia Water Resources Research Center, cooperating sponsors, Universities Council on Water Resources ... [and others] ; host, Roanoke Branch, Virginia Section, ASCE