00837nam0-22003131i-450-99000398952040332120040109111446.00-89774-639-2000398952FED01000398952(Aleph)000398952FED0100039895220040109d--------km-y0itay50------baitaHow to write usable user documentationWeiss E.H.2PhoenixOryx press1991calcolatorimanualeelaborazione dati808'.066044-dc20Weiss,Edmond H.150690ITUNINARICAUNIMARCBK99000398952040332100 G1437467DETECDETECHow to write usable user documentation474658UNINA