@misc{indiciae3ff7736a25b8, title = {Pesticide, nutrient, water-discharge and physical-property data for the Mississippi River and some of its tributaries, April 1991-September 1992}, author = {Richard H. Coupe}, year = {1995}, doi = {10.3133/ofr93657}, url = {https://pubs.usgs.gov/publication/ofr93657}, note = {Source identifier: ofr93657} }