Preparing for the third decade (Cycle 3) of the National Water Quality Assessment (NAWQA) Program /
"The first two decades of the U.S. Geological Survey's National Water Quality Assessment (NAWQA) Program have provided a successful and useful assessment of U.S. water-quality conditions, how they have changed over time, and how natural features and human activities have affected those con...
Cote: | Libro Electrónico |
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Collectivités auteurs: | , , |
Format: | Électronique eBook |
Langue: | Inglés |
Publié: |
Washington, D.C. :
National Academies Press,
2012.
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Sujets: | |
Accès en ligne: | Texto completo |