00231nam a2200085Ia 4500008004100000041000800041100001800049245005000067260002800117230508s1990    xx            000 0 und d  aeng  aGRMBLEBY J.B.  aCM- AIDED ANALYSIS & DESIGN OF ELETRO NETWORK  bPITMAN BOOKS,LTD.c1990