000 00274nam a2200121Ia 4500
008 211126s9999 xx 000 0 und d
082 _a621.042
100 _aG.D.RAI
245 0 _aNON-CONVENTIONAL ENERGY SOURCES
260 _bKHANNA
365 _b175.00
942 _cBTECH
999 _c139668
_d139668