TY - BOOK T1 - Physical, chemical, and biological data for selected streams in Chester County, Pennsylvania, 1981-94 DA - 1999. CY - Lemoyne, Pa. : CY - Denver, Colo. : AU - Reif, Andrew G. VL - 99-216 CN - I 19.76: PB - U.S. Dept. of the Interior, U.S. Geological Survey ; PB - Branch of Information Services [distributor], PP - Lemoyne, Pa. : PP - Denver, Colo. : PY - 1999. N1 - Shipping list no.: 2002-0363-M. ID - 261911 KW - Water KW - Freshwater invertebrates KW - Benthos KW - Water KW - Water TI - Physical, chemical, and biological data for selected streams in Chester County, Pennsylvania, 1981-94 ER -