@misc{indiciae02558f90780a,
  title = {Atrazine and metolachlor occurrence in shallow ground water of the United States, 1993 to 1995: Relations to explanatory factors},
  author = {D.W. Kolpin and J.E. Barbash and R. J. Gilliom},
  year = {2007},
  doi = {10.1111/j.1752-1688.2002.tb01553.x},
  url = {https://pubs.usgs.gov/publication/70024752},
  note = {Source identifier: 70024752}
}