@misc{indiciae97848dcdc430,
  title = {Statistical modeling of agricultural chemical occurrence in midwestern rivers},
  author = {W.A. Battaglin and D. A. Goolsby},
  year = {1997},
  doi = {10.1016/s0022-1694(97)00011-5},
  url = {https://pubs.usgs.gov/publication/70019606},
  note = {Source identifier: 70019606}
}