@article{253,
      author = {Stevenson, D. L.},
      url = {http://library.usi.edu/record/253},
      title = {Oil production from the Ste. Genevieve limestone in the  Exchange area, Marion County, Illinois},
      publisher = {Illinois State Geological Survey,},
      recid = {253},
      pages = {23 p.},
      address = {Urbana,},
      year = {1969},
}