00530nam a2200169Ia 4500003000400000008004100004040001600045082001300061100002500074245011700099700002300216700002200239260003000261300001000291650003200301650002700333GCL140319s9999    xx            000 0 eng d  aGCL / cGCL04a004bW U1 aHUTCHINSON, SARAH  E10aUSING INFORMATION TECHNOLOGY: A PRACTICAL INTRODUCTION TO COMPUTERS AND COMMUNICATIONS. / cHUTCHINSON, SARAH  E1 aWILLIAMS, BRIAN K.1 aSAWYER, STACEY C.  a[S.N] : bIRWIN ، c1995  a646 P04aTELECOMMUNICATION - SYSTEMS04aINFORMATION TECHNOLOGY