000			00406nam a2200145Ia 4500
008			220107s9999 xx 000 0 und d
040			_cJayakar Knowledge Resource Centre
100			_aKennedy, George
245		0	_aElectronic communication systems
250			_a2nd
260			_bMcGraw-Hill Kogakusha _aTokyo _c1977
300			_axxv,774p p.
653			_aCommunication system-electronic
942			_c1
999			_c161639 _d161639