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Water Chemistry of Shoal Creek and Waller Creek, Austin, Texas, and Potential Sources of Nitrate

Patricia B. GingRoger W. LeeSteven R. Silva

出版	U.S. Department of the Interior, U.S. Geological Survey, 1996
URL	http://books.google.com.hk/books?id=Si1Bk_hnTMQC&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN