@article{120539,
      author = {Brown, D. L.},
      url = {http://library.usi.edu/record/120539},
      title = {Correlation of paleostructure and sediment deposition in  the Madison limestone and associated rocks in parts of  Montana, North Dakota, South Dakota, Wyoming, and Nebraska  /},
      publisher = {U.S. Dept. of the Interior, Geological Survey :},
      recid = {120539},
      pages = {1 portfolio (1 v., 34 maps, 1 table) :},
      address = {[Reston Va.?] :},
      year = {1984},
}