@article{259200,
      recid = {259200},
      author = {Lillis, Paul G. and Bethke, Philip Martin,},
      title = {Preliminary results on the organic geochemistry of the  Oligocene Creede Formation, Colorado [microform] /},
      publisher = {U.S. Dept. of the Interior, U.S. Geological Survey,},
      address = {[Denver, Colo.] :},
      pages = {14 p. :},
      year = {2001},
      note = {Cover title.},
      url = {http://library.usi.edu/record/259200},
}