@article{196723,
      recid = {196723},
      author = {Heran, William D.},
      title = {Codicil to the geophysical expression of selected mineral  deposit models [microform] /},
      publisher = {U.S. Geological Survey :},
      address = {[Denver, CO? :},
      pages = {1 v.},
      year = {1994},
      note = {Distributed to depository libraries in microfiche.},
      url = {http://library.usi.edu/record/196723},
}