The coal resources of the world : an inquiry made upon the initiative of the Executive Committee of the XII International Geological Congress, Canada, 1913 : with the assistance of geological surveys and mining geologists of different countries /

समान संसाधन

• World coal resources : methods of assessment and results /
  द्वारा: Fettweis, Günter B. (Günter Bernhard)
  प्रकाशित: (1979)
• Le charbon /
  द्वारा: Romeuf, Jean
  प्रकाशित: (1946)
• Le charbon : composition, géologie, gisements.
  द्वारा: Lombard, Augustin
  प्रकाशित: (1946)
• Steam coal : prospects to 2000 /
  प्रकाशित: (1978)
• Coal resources : the full report to the Conservation Commission of the World Energy Conference.
  प्रकाशित: (1978)