000 00302nam a2200121Ia 4500
008 190829s9999 xx 000 0 und d
082 _a530
_bANS/C
100 _aANSHUL GUPTA
245 0 _aCSIR- UGC NET/JRF/SLET PHYSICAL SCIENCE
250 _a1st Ed.
260 _bUpkar Prakashan
_aAgra
942 _cBK
999 _c13235
_d13235