@misc{indiciaebc6c39b7b4b2,
  title = {Water-quality data-collection activities in Colorado and Ohio; Phase II, Evaluation of 1984 field and laboratory quality-assurance practices},
  author = {Carolyn J. Oblinger Childress and Thomas H. Chaney and Donna Myers and J. Michael Norris and Janet Hren},
  year = {1987},
  doi = {10.3133/ofr8733},
  url = {https://pubs.usgs.gov/publication/ofr8733},
  note = {Source identifier: ofr8733}
}