TY - RPRT TI - Phosphorus Concentrations, Loads, and Yields in the Illinois River Basin, Arkansas and Oklahoma, 2000-2004 AU - Robert L. Tortorelli AU - Barbara E. Pickup PY - 2006 DO - 10.3133/sir20065175 UR - https://pubs.usgs.gov/publication/sir20065175 ID - sir20065175 ER -