@misc{indiciae750c77233943,
  title = {A Mass-balance nitrate model for predicting the effects of land use on ground-water quality in municipal wellhead-protection areas},
  author = {M. H. Frimpter and J.J. Donohue and M.V. Rapacz and H.G. Beye},
  year = {1990},
  doi = {10.3133/ofr88493},
  url = {https://pubs.usgs.gov/publication/ofr88493},
  note = {Source identifier: ofr88493}
}