000			00355nam a2200145Ia 4500
008			221231s9999 xx 000 0 und d
100			_aSingh R P and Sapre S D _95547
245		0	_aCommunication System
250			_a2
260			_bTata McGraw-Hill
260			_c2007
300			_a581
650			_aElectronics and Communication _95548
942			_cBE_BK
999			_c4079 _d4079