@article{196735,
      recid = {196735},
      author = {Knepper, Daniel H. and Langer, William H. and Miller, S.  H.},
      title = {Remote sensing and airborne geophysics in the assessment  of natural aggregate resources [microform] /},
      publisher = {U.S. Dept. of the Interior, U.S. Geological Survey :},
      address = {Denver, CO :},
      pages = {1 v. (various pagings) :},
      year = {1994},
      note = {Cover title.},
      url = {http://library.usi.edu/record/196735},
}