@misc{indiciae0f024982b74b,
  title = {Occurrence of pesticides, nitrite plus nitrate, arsenic, and iron in water from two reaches of the Missouri River alluvium, northwestern Missouri; July 1988 and June-July 1989},
  author = {A.C. Ziegler and W.C. Wallace and D. W. Blevins and R.D. Maley},
  year = {1993},
  doi = {10.3133/ofr93101},
  url = {https://pubs.usgs.gov/publication/ofr93101},
  note = {Source identifier: ofr93101}
}