@misc{indiciae9c20cca1d295,
  title = {Factors affecting water quality in selected carbonate aquifers in the United States, 1993-2005},
  author = {Bruce D. Lindsey and Marian P. Berndt and Brian G. Katz and Ann F. Ardis and Kenneth A. Skach},
  year = {2009},
  doi = {10.3133/sir20085240},
  url = {https://pubs.usgs.gov/publication/sir20085240},
  note = {Source identifier: sir20085240}
}