@article{229459,
      author = {Johnson, Ronald C. and May, Fred E.,},
      url = {http://library.usi.edu/record/229459},
      title = {A study of the Cretaceous-Tertiary unconformity in the  Piceance Creek Basin, Colorado : the underlying Ohio Creek  Formation (Upper Cretaceous) redefined as a member of the  Hunter Canyon or Mesaverde Formation /},
      publisher = {U.S. Govt. Print. Off. :},
      recid = {229459},
      pages = {iii, 27 p. :},
      address = {Washington :},
      year = {1980},
}