@article{172450,
      note = {"Prepared by the Central Statistical Service (Data  Management Service) of UNCTAD"},
      url = {http://digitallibrary.un.org/record/172450},
      title = {Tungsten statistics. July 1993.},
      publisher = {UN,},
      recid = {172450},
      pages = {v, 40 p. :},
      address = {Geneva :. 1993-07-02},
      year = {1993},
      month = {Jul},
}