TY - BOOK AU - Cuffney, Thomas F., AU - Gurtz, Martin E. AU - Meador, Michael Rogers, CN - I 19.76: CY - Raleigh, N.C. : CY - Denver, CO : DA - 1993. ID - 197263 KW - Water quality KW - Benthos KW - Freshwater ecology N1 - Distributed to depository libraries in microfiche. N1 - Shipping list no.: 94-0791-M. PB - U.S. Dept. of the Interior, U.S. Geological Survey ; PB - Earth Science Information Center, Open-File Reports Section [distributor], PP - Raleigh, N.C. : PP - Denver, CO : PY - 1993. T1 - Methods for collecting benthic invertebrate samples as part of the National Water-Quality Assessment Program TI - Methods for collecting benthic invertebrate samples as part of the National Water-Quality Assessment Program ER -