@article{216824,
      recid = {216824},
      author = {Ellefsen, Karl. and Lucius, Jeffrey E. and Fitterman,  David V.},
      title = {An evaluation of several geophysical methods for  characterizing sand and gravel deposits /},
      publisher = {U.S. Geological Survey,},
      address = {[Denver, CO] :},
      pages = {vi, 26 leaves :},
      year = {1998},
      note = {Cover title.},
      url = {http://library.usi.edu/record/216824},
}