@article{199179,
      note = {"A joint study conducted in collaboration with the  Illinois State Geological Survey ...."},
      author = {Nelson, W. John.},
      url = {http://library.usi.edu/record/199179},
      title = {Bedrock geology of the Paducah 1°x2° CUSMAP Quadrangle,  Illinois, Indiana, Kentucky, and Missouri /},
      publisher = {U.S. G.P.O. ;},
      recid = {199179},
      pages = {iv, 36 p. :},
      address = {Washington :},
      year = {1998},
}