00796nam0-22002891i-450-9900013145204033210-442-00863-5000131452FED01000131452(Aleph)000131452FED0100013145220000920d1992----km-y0itay50------baengEffective computer user documentationJames CrownNew YorkVan Nostrand Reinhold1992XV, 425 p., 24 cmComputer user documentation005.15Crown,James59475ITUNINARICAUNIMARCBK990001314520403321170-A-69720MA1MA1Effective computer user documentation382786UNINAING01