@article{19722,
      author = {Howard, Richard Henry.},
      url = {http://library.usi.edu/record/19722},
      title = {Wapella East oil pool, De Witt County, Illinois, a  Silurian reef.},
      recid = {19722},
      pages = {15 p. :},
      address = {Urbana,},
      year = {1963},
}