@article{125090,
      recid = {125090},
      author = {Howard, R. H. and Whitaker, Stephen T.},
      title = {Hydrocarbon accumulation in a paleovalley at  Mississippian- Pennsylvanian unconformity near Hardinville,  Crawford County, Illinois : a model paleogeomorphic trap /},
      publisher = {Illinois State Geological Survey,},
      address = {Champaign, [Ill.] :},
      pages = {26 p. :},
      year = {1988},
      url = {http://library.usi.edu/record/125090},
}