TY  - BOOK
AU  - Gowar J.
TI  - Optional Communication Systems
SN  - 0000017500
U1  - 621.38401 
PY  - 1984///
CY  - New Delhi
PB  - PHI
KW  - Communication  Optional  Systems
KW  - Optical Fibre Comm (621.38401)
ER  -