@article{160189,
      note = {"UNCTAD annual bulletin".},
      url = {http://digitallibrary.un.org/record/160189},
      title = {Tungsten statistics., 1992.},
      publisher = {UN,},
      recid = {160189},
      pages = {v, 71 p. :},
      address = {New York :. 1993},
      year = {1993},
}