@article{260911,
      note = {At head of title: Economic Commission for Europe,  Committee on Sustainable Energy, Geneva.},
      url = {http://digitallibrary.un.org/record/260911},
      title = {International Classification of in-Seam Coals =  Classification internationale des charbons en veine =  Mezhdunarodnaia klassifikatsiia uglei v plastakh.},
      publisher = {UN,},
      recid = {260911},
      pages = {41 p. :},
      address = {New York ;. 1998},
      year = {1998},
}