@article{219716,
      url = {http://digitallibrary.un.org/record/219716},
      title = {Case studies illustrating environmental practices in  mining and metallurgical processes.},
      publisher = {UNEP, Industry and Environment ;},
      recid = {219716},
      pages = {61 p. :},
      address = {Paris :. 1996},
      year = {1996},
}