@misc{indiciae44ca222e0bdf,
  title = {Sampling and analytical methods},
  author = {Eurybiades Busenberg and L.N. Plummer and Peter G. Cook and D. K. Solomon and L. F Han and H. Oster},
  year = {2006},
  url = {https://pubs.usgs.gov/publication/70199127},
  note = {Source identifier: 70199127}
}