000 00259nam a2200097Ia 4500
008 230508s2004 xx 000 0 und d
041 _aeng
100 _aCOUCH LEON W.
245 _aDIGITAL AND ANALOG COMM. SYSTEM 69TH RD
260 _bPEARSON EDUCATION LT
_c2004
999 _c730066
_d730066