@article{196043,
      recid = {196043},
      author = {Zaugg, Steven D.},
      title = {Methods of analysis by the U.S. Geological Survey National  Water Quality Laboratory determination of pesticides in  water by C-18 solid-phase extraction and capillary-column  gas chromatography/mass spectrometry with selected-ion  monitoring / [microform] :},
      publisher = {U.S. Dept. of the Interior, U.S. Geological Survey :},
      address = {Denver, Colo. :},
      pages = {v, 49 p. :},
      year = {1995},
      note = {Distributed to depository libraries in microfiche.},
      url = {http://library.usi.edu/record/196043},
}