@misc{indiciae7de360db67ca,
  title = {Selected historic agricultural data important to environmental quality in the United States},
  author = {Katia M. Grey and Paul D. Capel and Nancy T. Baker and Gail P. Thelin},
  year = {2012},
  doi = {10.3133/ds689},
  url = {https://pubs.usgs.gov/publication/ds689},
  note = {Source identifier: ds689}
}