000
00262nam a2200121Ia 4500
008
220201s2006 xx 000 0 eng d
082
_a
535
_b
HEC
100
_a
Hecht,E
245
0
_a
Optics
260
_a
delhi
_b
Pearson Edu.
_c
2006
300
_a
704
942
_2
ddc
999
_c
37389
_d
37389