000 00273nam a2200121Ia 4500
008 160122s9999 xx 000 0 und d
041 _aEnglish
100 _aS Rao
245 _aEnergy Technology
260 _bDelhi:khanna Pub
_c2000
300 _a1144p.
650 _aElectronic
999 _c540
_d540