000 00373nam a22001457a 4500
020 _a9788120308344
082 _a621.380414
_bGOW/O
100 _aGowar,John
245 _aOptical communication systems/
_cJohn Gowar
250 _a2nd ed.
260 _aNew Delhi:
_bPrentice-hall of India,
_c1993.
300 _axvi,696p.
650 _aOptical Communication
942 _cBK
999 _c613542
_d613542