000 00336nam a2200157Ia 4500
008 220919s9999 xx 000 0 und d
100 _aSurindra Lal
245 0 _aGRB- Physics- XII Part - II
250 _a9th
260 _aNA
260 _bG. R. Bathla
260 _c2019
300 _a580
650 _aPhysics
942 _cREF
999 _c161001
_d161001