@article{32073,
      author = {Ellenberger, John L.},
      url = {http://library.usi.edu/record/32073},
      title = {Slickenside occurrence in coal mine roof of the Valley  Camp no. 3 mine near Wheeling, W. Va. /},
      publisher = {Dept. of Interior, Bureau of Mines,},
      recid = {32073},
      pages = {17 p. :},
      address = {[Washington] :},
      year = {1979},
}