@article{8684,
      recid = {8684},
      author = {Swann, David Henry,},
      title = {Waltersburg sandstone oil pools of lower Wabash area,  Illinois and Indiana /},
      publisher = {Illinois State Geological Survey,},
      address = {Urbana :},
      pages = {p. 2561-2581 :},
      year = {1951},
      url = {http://library.usi.edu/record/8684},
}