000 00272nam a2200121Ia 4500
020 _a8120308344
100 _aJohn Gowar
245 _aOptical Communication System
250 _a2
260 _c1995
_bPRENTICE HALL OF INDIA
_aNew Delhi
300 _axvi+696
942 _cBK
999 _c23521
_d23521