000 00263nam a2200109Ia 4500
008 170101s2017 xx 000 0 und d
100 _aSENIOR
245 0 _aOPTICAL FIBER COMMUNICATIONS PRINCIPLES
260 _aNEW DELHI
_bPEAR
650 _aECE
942 _2ddc
_cBK
999 _c76749
_d76749