000 00300nam a2200121Ia 4500
008 190216s9999||||xx |||||||||||||| ||und||
100 _aSabir Kumar Sarkar
245 0 _aOptical Fibre&Fiber Optics Communication Systems
260 _bS Chand & Co
300 _a366
650 _aPhysics
942 _cBK
999 _c33936
_d33936