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Methods for Comparing Water-quality Conditions Among National Water-Quality Assessment Study Units, 1992-1995
Robert J. GilliomDavid K. MuellerLisa H. Nowell
出版U.S. Geological Survey, 1998
URLhttp://books.google.com.hk/books?id=ZqSQPbCWOLIC&hl=&source=gbs_api
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