000 00317nam a22001457a 4500
003 BML
020 _a9781259006876
082 _a621.38275
_bKEI
100 _aKeiser , Gerd
245 _aOptical fiber communications
250 _a5th.
260 _aNew Delhi
_bMcGraw-Hill
_c2014
300 _a662p.
942 _2ddc
_cBK
999 _c1976
_d1976