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  1. 1

    Handbook for sampling and sample preservation of water and wastewater / von Hulbregtse, K. R.

    Veröffentlicht 1976
    “… National Technical Information Service,U.S. Department of Commerce, …”
    Buch
  2. 2

    Methods for the determination of bacteriological contaminants in drinking water : training manual /

    Veröffentlicht 1979
    “… National Technical Information Service, U.S. Department of Commerce, …”
    Buch