000 00424nam a2200145Ia 4500
008 180713s9999 xx 000 0 und d
082 _a500.2 K1
100 _a"Kumar, Sunil "
245 0 _aPhysical Sciences
260 _aDelhi
260 _b Unique Publications
260 _c2014
365 _b720
942 _cBK
999 _c107810
_d107810