@misc{indiciaefeec8b3700b1,
  title = {Estimation of annual agricultural pesticide use for counties of the conterminous United States, 1992-2009},
  author = {Gail P. Thelin and Wesley W. Stone},
  year = {2013},
  doi = {10.3133/sir20135009},
  url = {https://pubs.usgs.gov/publication/sir20135009},
  note = {Source identifier: sir20135009}
}