@misc{indiciaea997c9296ebb,
  title = {A modification in the determination of reducible sulfur by the tin(II)-strong phosphoric acid method using the LECOtmSC132 Sulfur Analyzer},
  author = {M.R. Krasnow},
  year = {1986},
  doi = {10.3133/ofr876},
  url = {https://pubs.usgs.gov/publication/ofr876},
  note = {Source identifier: ofr876}
}