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.
Chicagoスタイル(17版)引用形式National Research Council (U.S.). Committee on Water Quality Improvement for the Pittsburgh Region , Inc ebrary. Regional Cooperation for Water Quality Improvement in Southwestern Pennsylvania. Washington, DC: National Academies Press, 2005.
MLA(9版)引用形式National Research Council (U.S.). Committee on Water Quality Improvement for the Pittsburgh Region , Inc ebrary. Regional Cooperation for Water Quality Improvement in Southwestern Pennsylvania. National Academies Press, 2005.
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