000 00322nam a2200145Ia 4500
008 220421s9999||||xx |||||||||||||| ||und||
020 _c399
040 _aET
100 _aSINGH ,RD
245 0 _aPRI &PRAC OF MODERN COAL MINING
260 _bNEW AGE INT
_aHYDERABAQD
300 _a696
500 _a53559
942 _cBK
999 _c59573
_d59573