00354nam a2200109Ia 4500008004100000082001900041100002500060245005600085260003900141300001000180650005400190211119s9999||||xx |||||||||||||| ||und||  a621.382bSUB-O  aSubir Kumar Sarkar,  0aOptical Fibres and Fibre Optic Comunication Systems  bS Chand & Companya1900cNew Delhi  a306p.  aTechnologyvApplied physicsPhysicsxGeneral Stack