@article{144923,
      recid = {144923},
      author = {Macdonald, Ray. and Smith, Robert L. and Thomas, John E.},
      title = {Chemistry of the subalkalic silicic obsidians /},
      publisher = {U.S. Dept. of the Interior, U.S. Geological Survey ;},
      address = {[Reston, Va.?] :},
      pages = {vi, 214 p. :},
      year = {1992},
      note = {Shipping list no.: 93-0033-P.},
      url = {http://library.usi.edu/record/144923},
}