00000nam a2200000 a 4500 20251203091729.0 8185617260 535.89, D, GHA Ghatak, Ajoy, Sharma, Anurag, Tewari, Ramanand Understanding fiber Optics on a PC Delhi Viva Books 1994 x,100p, 24cm Fiber Optics eng _ 73499 C 50653 50653 0 0 0 0 PU PU 1998-04-08 500.00 0 535.89, D, GHA 73499 BK