000 00339nam a2200157Ia 4500
008 220913s9999 xx 000 0 und d
041 _aeng
082 _a539 SHE
100 _aSehgal
245 _aModern physics
250 _a1
260 _aNew Delhi
_bS.Chand
_c1983
650 _aPhysics
906 _a1983-84
999 _c175195
_d175195
773 _aB.Pharm