000 00309nam a2200121Ia 4500
008 190711s9999 xx 000 0 und d
082 _a622.33 S615
100 _aSINGH,B
245 0 _aPROBLEMS OF COAL AND NON COAL MINES
260 _aDHANBAD
_bPARIJAT MUDRANALAYA
_c1982
300 _a28X23
942 _cBK
_2DDC
999 _c22154
_d22154