@misc{indiciae030d73b70862,
  title = {Delineation of background laboratory contamination in the analysis of trace concentrations of extractable organic materials in crystalline rocks by Soxhlet extraction, column chromotography, and gas chromatography},
  author = {Koichi Mimura and L.C. Price},
  year = {1999},
  doi = {10.3133/ofr99335},
  url = {https://pubs.usgs.gov/publication/ofr99335},
  note = {Source identifier: ofr99335}
}