000 00257nam a2200109Ia 4500
008 230411s9999 xx 000 0 und d
082 _a621.3121
_bNAG
100 _a NAG (P.K.)
245 0 _aPower Plant Engineering
260 _bTMH
_aNEW DELHI
942 _cBK
999 _c3453
_d3453