000
00313nam a2200133Ia 4500
008
220201s1992 xx 000 0 eng d
082
_a
4
_b
SYM
100
_a
Syms, Richard
245
0
_a
Optical guided waves & devices
250
_a
3rd ed
260
_a
London
_b
Mcgraw Hill
_c
1992
300
_a
498
942
_2
ddc
999
_c
34763
_d
34763