000			00398nam a2200157Ia 4500
008			180612s9999||||xx |||||||||||||| ||und||
020			_a0 13 250440 5
041			_aen
082			_a621.38
100			_aRODDY, Dennis.
245		0	_aElectonic communications.
250			_a3rd edi.
260			_aVirginia. _bPrentice/Hall international I _cnc. 1984
300			_axii, 788p.
942			_cPR
999			_c42601 _d42601