Búsqueda de LIBROS DEL AUTOR: david m nielsen

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  • THE ESSENTIAL HANDBOOK OF GROUND-WATER SAMPLING
    DAVID M. NIELSEN
    Tremendous improvements in ground-water sampling methodologies and analytical technologies have made it possible to collect and analyze truly representative samples to detect increasingly lower levels of contaminants-now in the sub-parts-per-billion range. Though these new methods produce more accurate and precise data and are less expensive, many ...

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