@misc{indiciae03c58061b776,
  title = {Selected papers on agricultural chemicals in water resources of the Midcontinental United States},
  author = {D. A. Goolsby and L.L. Boyer and G. E. Mallard},
  year = {1993},
  doi = {10.3133/ofr93418},
  url = {https://pubs.usgs.gov/publication/ofr93418},
  note = {Source identifier: ofr93418}
}