@article{197304,
      note = {Chiefly tables.},
      author = {Plummer, L. Niel. and Dunkle, S. A. and Busenberg,  Eurybiades.},
      url = {http://library.usi.edu/record/197304},
      title = {Data on chlorofluorocarbons (CCl₃F and CCl₂F₂) as  dating tools and hydrologic tracers in shallow ground water  of the Delmarva Peninsula [microform] /},
      publisher = {U.S. Dept. of the Interior, U.S. Geological Survey ;},
      recid = {197304},
      pages = {iv, 56 p. :},
      address = {Reston, Va. :},
      year = {1993},
}