@misc{indiciaea2e3fb1bb1d4,
  title = {Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory--Determination of wastewater compounds by polystyrene-divinylbenzene solid-phase extraction and capillary-column gas chromatography/mass spectrometry},
  author = {Steven D. Zaugg and Steven G. Smith and Michael P. Schroeder and Larry B. Barber and Mark R. Burkhardt},
  year = {2002},
  doi = {10.3133/wri20014186},
  url = {https://pubs.usgs.gov/publication/wri20014186},
  note = {Source identifier: wri20014186}
}