@article{198923,
      recid = {198923},
      author = {Wilson, Anna B. and DeWitt, Ed.},
      title = {Database for metallic mineral districts and mines of the  Black Hills, South Dakota and Wyoming [microform] /},
      publisher = {U.S. Dept. of the Interior, U.S. Geological Survey ;},
      address = {[Denver, Colo.] :},
      pages = {i, 7 p. ;},
      year = {1992},
      note = {92-523-B and C are Database (2 diskettes).},
      url = {http://library.usi.edu/record/198923},
}