@article{226418,
      author = {Drewes, Harald,},
      url = {http://library.usi.edu/record/226418},
      title = {Cenozoic rocks of the Santa Rita mountains, southeast of  Tucson, Arizona.},
      publisher = {U.S. Govt. Print. Off.,},
      recid = {226418},
      pages = {iv, 66 p. :},
      address = {Washington,},
      year = {1972},
}