@article{257390,
      note = {Prepared by Dietmar Kelter.},
      author = {Kelter, Dietmar.},
      url = {http://digitallibrary.un.org/record/257390},
      title = {Draft Guidelines to the United Nations International  Framework Classification for Reserves/Resources : Solid  Fuels and Mineral Commodities /},
      publisher = {UN,},
      recid = {257390},
      pages = {23 p. :},
      address = {Geneva :. 1998-07-20},
      year = {1998},
      month = {Jul},
}