000			00422nam a2200181Ia 4500
008			200428s9999||||xx |||||||||||||| ||und||
020			_c225.55
040			_aMAIN
041			_aEnglish
082			_a621.38 _bTEM
100			_aThemes, Lloyd
245			_aTheory and problems of electronic communications
250			_aInt.ed.
260			_bMcgraw Hill _c1986
300			_a138p.
650			_aELECTRONICS
942			_cGB
999			_c602 _d602