TY  - BOOK
AU  - Gowar,John .
TI  - Optical communication systems / 
SN  - 8120308344
U1  - 621.3827 
PY  - 1999///
CY  - New Delhi : 
PB  - Prentice Hall of India , 
KW  - TELE COMMUNICATION
N1  - Includes index
ER  -