@article{183398,
      note = {"Chapters P and Q are issued as a single volume and are  not available separately."},
      author = {Keller, Margaret A. and Tennyson, Marilyn Elizabeth, and  Denison, Rodger E. and Schwalbach, Jon R.},
      url = {http://library.usi.edu/record/183398},
      title = {Strontium isotope evidence for the age of the Vaqueros  Formation and latest Oligocene marine transgression in the  northern Santa Maria Province, central California /},
      publisher = {U.S. G.P.O. ;},
      recid = {183398},
      pages = {1 v. (various pagings) :},
      address = {Washington, D.C. :},
      year = {1996},
}