@misc{indiciaee79bd5122c51,
  title = {Polyethylene as a source of artifacts in the paper chromatography of chlorinated hydrocarbon insecticides},
  author = {C.C. Van Valin and B.J. Kallman and J.J O’Donnell},
  year = {1963},
  url = {https://pubs.usgs.gov/publication/70171211},
  note = {Source identifier: 70171211}
}