TY - BOOK T1 - Environmental monitoring and assessment program surface watersfield operations and methods for measuring the ecological condition of wadeable streams / DA - [1998] CY - Research Triangle Park, NC : AU - Lazorchak, James M. AU - Klemm, Donald J. AU - Peck, David V. CN - EP 1.23/5: PB - National Exposure Research Laboratory [and] National Health and Environmental Effects Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, PP - Research Triangle Park, NC : PY - [1998] N1 - "September 1998." N1 - Shipping list no.: 99-0611-M. N1 - "EPA/620/R-94/004F." ID - 221238 KW - Stream ecology KW - Environmental monitoring KW - Water quality TI - Environmental monitoring and assessment program surface watersfield operations and methods for measuring the ecological condition of wadeable streams / ER -