000 00283nam a2200121Ia 4500
008 230912s9999 xx 000 0 und d
100 _aSingh, Shobh Nath
245 0 _aNon Conventional Energy Resources
260 _aDELHI
260 _bPEARSON
260 _c2015
300 _axxiv531
999 _c38730
_d38730