@misc{indiciae8941eb7e29df,
  title = {U.S. Geological Survey protocol for the collection and processing of surface-water samples for the subsequent determination of inorganic constituents in filtered water},
  author = {Arthur J. Horowitz and C. R. Demas and K. K. Fitzgerald and T. L. Miller and D. A. Rickert},
  year = {1994},
  doi = {10.3133/ofr94539},
  url = {https://pubs.usgs.gov/publication/ofr94539},
  note = {Source identifier: ofr94539}
}