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Coal Industry of the Former USSR
A. B. Kovalchuk · Taylor & Francis Group
144 sayfa · 2002
Coal trade / Environmental policy, russia (federation) / Coal mines and mining / Charbon / Industrie
Problemy i perspektivy razvitii︠a︡ ugolʹnoĭ promyshlennosti Rossii do 2010 goda
A. B. Kovalchuk, L. N. Repin · In-t narodnokhozi︠a︡ĭstvennogo prognozirovanii︠a︡ RAN
52 sayfa · 2001
Coal trade