@article{226799,
      note = {Three col. maps on folded leaves in pocket.},
      author = {Du Bray, E. A.},
      url = {http://library.usi.edu/record/226799},
      title = {Geology of the Silsilah ring complex and associated tin  mineralization, Kingdom of Saudi Arabia /},
      publisher = {U.S. G.P.O. ;},
      recid = {226799},
      pages = {iv, 47 p. :},
      address = {Washington :},
      year = {1988},
}