000			00409nam a2200157Ia 4500
008			180612s9999||||xx |||||||||||||| ||und||
020			_a0-02-680841-2
041			_aen
082			_a384
100			_aBLYTH, W. John.
245		0	_aTelecomunicatios : Concepts , Development, and Management.
250			_a2 nd
260			_aNew York . _bGlancoe / McgGraw - Hill _c1990
300			_axx, 362 P
942			_cPR
999			_c58238 _d58238