relation: https://pure.iiasa.ac.at/id/eprint/4965/ title: The Changing Approach to Water-Quality Management in the United States creator: Shanahan, P. publisher: WP-96-062 date: 1996-06 type: Monograph type: NonPeerReviewed format: text language: en identifier: https://pure.iiasa.ac.at/id/eprint/4965/1/WP-96-062.pdf identifier: Shanahan, P. (1996). The Changing Approach to Water-Quality Management in the United States. IIASA Working Paper. IIASA, Laxenburg, Austria: WP-96-062