@article{122537,
      author = {Hearn, B. C., and McGee, E. S.},
      url = {http://library.usi.edu/record/122537},
      title = {Garnets in Montana diatremes : a key to prospecting for  kimberlites /},
      publisher = {U.S. G.P.O. :},
      recid = {122537},
      pages = {iv, 33 p. :},
      address = {Washington, D.C. :},
      year = {1983},
}