TY - RPRT TI - Benthic invertebrate assemblages and their relation to physical and chemical characteristics of streams in the Eastern Iowa Basins, 1996-98 AU - Allison R. Brigham AU - Eric M. Sadorf PY - 2001 DO - 10.3133/wri004256 UR - https://pubs.usgs.gov/publication/wri004256 ID - wri004256 ER -