000 00198 a2200097 4500
001 8607
100 _aAjmal,H.H.
245 _aAn introd to lasers
260 _a
_bFerozsons
_c
090 _c6930
_d6930
942 _aNUST-CAE
_cM
_c33523
999 _c243680
_d243680