TY  - BOOK
AU  - Powers, John 
TI  - Intruduction to fiber optic systems 
SN  - 0-07-116679-3 
U1  - 621.382 7 POW  
PY  - 1999///
CY  - Tata Mcgraw hill 
PB  - Boston 
KW  - OPTICAL COMMUNICATION
ER  -