TY  - BOOK
AU  - Sharma, N
AU  - 
TI  - Fiber optics in telecommunications
U1  - 621.391.63 
PY  - 1987///
CY  - New Delhi
PB  - McGraw-Hill
KW  - Fibre
KW  - Fiber
N1  -  Bibliog p. 185-187
ER  -