@misc{indiciae949e5cc27d65,
  title = {New standard operating procedures and quality-control practices for the U.S. Geological Survey National Field Quality Assurance Program since January 1994},
  author = {Daniel L. Stanley},
  year = {1996},
  doi = {10.3133/ofr96130},
  url = {https://pubs.usgs.gov/publication/ofr96130},
  note = {Source identifier: ofr96130}
}