TY - BOOK AU - Dodge, Kent A. AU - Hornberger, Michelle I. AU - Bouse, Robin M. CN - I 19.87: CN - TD224.M9 CY - Helena, Mont. : CY - Denver, Colo. : DA - 1999] ID - 239417 KW - Water quality KW - River sediments KW - Trace elements KW - Benthic animals N1 - Chiefly tables. N1 - "September 1999"--Verso t.p. PB - U.S. Dept. of the Interior, U.S. Geological Survey ; PB - Branch of Information Services [distributor, PP - Helena, Mont. : PP - Denver, Colo. : PY - 1999] T1 - Water-quality, bed-sediment, and biological data (October 1997 through September 1998) and statistical summaries of data for streams in the upper Clark Fork basin, Montana / TI - Water-quality, bed-sediment, and biological data (October 1997 through September 1998) and statistical summaries of data for streams in the upper Clark Fork basin, Montana / VL - 99-251 ER -