@article{199793,
      recid = {199793},
      author = {Patton, Charles J. and Truitt, Earl P.},
      title = {Methods of analysis by the U.S. Geological Survey National  Water Quality Laboratory determination of the total  phosphorus by a Kjeldahl digestion method and an automated  colorimetric finish that includes dialysis / [microform] :},
      publisher = {U.S. Geological Survey :},
      address = {Denver, Colo. :},
      pages = {vii, 39 p. :},
      year = {1992},
      note = {Distributed to depository libraries in microfiche.},
      url = {http://library.usi.edu/record/199793},
}