National Research Council (U.S.). Committee on Water Quality Improvement for the Pittsburgh Region & ebrary, Inc. (2005). Regional cooperation for water quality improvement in southwestern Pennsylvania. National Academies Press.
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Chicago Style (17th ed.) Zitazioa
National Research Council (U.S.). Committee on Water Quality Improvement for the Pittsburgh Region eta Inc ebrary. Regional Cooperation for Water Quality Improvement in Southwestern Pennsylvania. Washington, DC: National Academies Press, 2005.
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MLA (9th ed.) Zitazioa
National Research Council (U.S.). Committee on Water Quality Improvement for the Pittsburgh Region eta Inc ebrary. Regional Cooperation for Water Quality Improvement in Southwestern Pennsylvania. National Academies Press, 2005.
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