000 00297pam a2200133 a 4500
020 _c
041 _aeng
082 _a539
_bAHM
100 _aAhmad , S . I,
_eLal, K. E.
245 _aModern Physics
_hTextual Documents
260 _aLucknow:
_bKendra ,
_c1969.
300 _a385p.
930 _a17496
999 _c94396
_d94396