000			00480nam a2200169Ia 4500
008			131223s9999 xx 000 0 und d
040			_aISI KOLKATA
041			_aEnglish
082			_a338.272(54) _bIn39
110			_aIndia. Industry and Supply, Ministry of
245			_aReport of the Committee on Conservation of Metallurgical coal
260			_aDelhi _bManager of Publications _c1951
300			_a149p.
650			_aCoal
650			_aProduction economics
942			_cBK
999			_c95826 _d95826