000 00308nam a22001337a 4500
005 20210322105255.0
008 210322b ||||| |||| 00| 0 eng d
041 _aeng
100 _aCohen B L
_924103
245 _aConcept of modern physics
260 _aNew Delhi
_bTMH
_c1988
300 _a435
942 _cBK
999 _c61395
_d61395