@misc{indiciae01f13c4e94ea,
  title = {Evaluation of agricultural best-management practices in the Conestoga River headwaters, Pennsylvania: Effects of nutrient management on water quality in the Little Conestoga Creek headwaters, 1983-89},
  author = {E. H. Koerkle and D. K. Fishel and M. J. Brown and K. M. Kostelnik},
  year = {1996},
  doi = {10.3133/wri954046},
  url = {https://pubs.usgs.gov/publication/wri954046},
  note = {Source identifier: wri954046}
}