@article{119703,
      author = {Sohl, Norman F. and Wright, W. B.},
      url = {http://library.usi.edu/record/119703},
      title = {Changes in stratigraphic nomenclature by the U.S.  Geological Survey, 1979 /},
      publisher = {U.S. Govt. Print. Off.,},
      recid = {119703},
      pages = {iv, 138 p. :},
      address = {Washington :},
      year = {1980},
}