@article{263537,
      recid = {263537},
      author = {Hedlund, David Carl,},
      title = {Geology and mineral deposits of the Steeple Rock and  Duncan mining districts, Grant and Hidalgo Counties, New  Mexico, and Greenlee County, Arizona [microform] /},
      publisher = {Dept. of the Interior, U.S. Geological Survey,},
      address = {[Denver, CO] :},
      pages = {i, 27 p. :},
      year = {1990},
      note = {Cover title.},
      url = {http://library.usi.edu/record/263537},
}