000			00328nam a22001337a 4500
005			20260430073647.0
999			_c55380 _d55380
008			190411b xxu||||| |||| 00| 0 eng d
020			_a070856729
082			_a621.38 SHR
100			_aShrader,Robert L.
245			_aElectronic Communication
250			_a3rd.
260			_aTokoyo _bMcGraw Hill _c1975