000 00315nam a2200121Ia 4500
008 190711s9999 xx 000 0 und d
082 _a621.380414 T255
100 _aTECHNICAL STAFF OF CSELT
245 0 _aOPTICAL FIBRE COMMUNICATION
260 _aNEW YORK
_bMcGraw-Hill
_c1981
300 _a24X16
942 _cBK
_2DDC
999 _c20820
_d20820