@article{83569,
      author = {Zorn, Stephen.},
      url = {http://digitallibrary.un.org/record/83569},
      title = {Mining and mineral processing in developing countries /},
      publisher = {UN,},
      recid = {83569},
      pages = {77 p. :},
      address = {Vienna :. 1985-01-21},
      year = {1985},
      month = {Jan},
}