000			00369nam a2200169Ia 4500
008			240220s9999 xx 000 0 und d
041			_aENG
100			_aGowar J.
245		0	_aOptical communication systems
260			_aNULL
260			_bPrentice-Hall Of India P. Ltd.
260			_c1989
300			_a577p.
365			_b75
650			_aETC
942			_cDBK
999			_c20236 _d20236