000			00477nam a2200193Ia 4500
001			40256
005			20250221154546.0
008			250214s9999||||xx |||||||||||||| ||und||
020			_a978007066755
100			_aFrenzel, Louis, E
245		0	_aprinciples of electronic communication systems
250			_a3
260			_aNew Delhi
260			_bTata McGraw-Hill
260			_c2008
300			_axiii, 885p.
650			_aElectronic communication systems
942			_cBK
999			_c56047 _d56047