@misc{indiciae70c4b6080023,
  title = {Summary and evaluation of pesticides in field blanks collected for the National Water-Quality Assessment Program, 1992-95},
  author = {Jeffrey D. Martin and Robert J. Gilliom and Terry L. Schertz},
  year = {1999},
  doi = {10.3133/ofr98412},
  url = {https://pubs.usgs.gov/publication/ofr98412},
  note = {Source identifier: ofr98412}
}