@article{160002,
      note = {Description based on: 1979 prelim.; title from caption.},
      url = {http://library.usi.edu/record/160002},
      title = {Perlite in ...},
      publisher = {U.S. Dept. of the Interior, Bureau of Mines,},
      recid = {160002},
      pages = {v. ;},
      address = {Washington, D.C. :},
}