TY  - BOOK
AU  - Ghatak, Ajoy  .
AU  - Thyagarajan,K  .
TI  - Introduction to fiber optics / 
SN  - 9788175960626
U1  - 621.3692 
PY  - 1999///
CY  - Cambridge : 
PB  - Cambridge University Press , 
ER  -