@article{121611,
      note = {Part of illustrative matter in pocket.},
      author = {Imlay, Ralph W.},
      url = {http://library.usi.edu/record/121611},
      title = {Middle Jurassic (Bajocian) ammonites from eastern Oregon,},
      publisher = {U.S. Govt. Print. Off.,},
      recid = {121611},
      pages = {iv, 100 p. :},
      address = {Washington,},
      year = {1973},
}