@misc{indiciae5ff18fcc9d62,
  title = {Concentration and fractionation of hydrophobic organic acid constituents from natural waters by liquid chromatography},
  author = {E.M. Thurman and Ronald L. Malcolm},
  year = {1979},
  doi = {10.3133/wsp1817g},
  url = {https://pubs.usgs.gov/publication/wsp1817G},
  note = {Source identifier: wsp1817G}
}