000 00253nam a2200121Ia 4500
008 221121s9999 xx 000 0 und d
041 _aENGLISH
082 _bARS
100 _aARSHI AHMAD
245 0 _aHYDRO POWER
650 _aSCIENCE
942 _cBK
999 _c176735
_d176735