000
00301nam a22001457a 4500
020
_a
8185617279
082
_a
621.369
_b
GHA
100
_a
Ghatak, A. K.
245
_a
Fiber optics
260
_a
Delhi
_b
Viva books
300
_a
215p.
650
_a
Fiber optics
700
_a
Shenoy, M. R.
942
_c
BK
999
_c
245868
_d
245868