@misc{indiciaec552c182cccb,
  title = {Methods and Sources of Data Used to Develop Selected Water-Quality Indicators for Streams and Ground Water for the 2007 Edition of The State of the Nation's Ecosystems Report with Comparisons to the 2002 Edition},
  author = {John T. Wilson and Nancy T. Baker and Michael J. Moran and Charles G. Crawford and Lisa H. Nowell and Patricia L. Toccalino and William G. Wilber},
  year = {2008},
  doi = {10.3133/ofr20081110},
  url = {https://pubs.usgs.gov/publication/ofr20081110},
  note = {Source identifier: ofr20081110}
}