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Concepts for a National Water-Quality Assessment Program

Robert M. HirschWilliam M. AlleyWilliam G. WilberGeological Survey (U.S.)

出版	U.S. Government Printing Office, 1989
URL	http://books.google.com.hk/books?id=Cmq2WOvIo3QC&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN