00294nam a2200121Ia 4500008004100000041001200041082002100053100002000074245003100094260002700125300000800152650001200160231217s9999    xx            000 0 und d  aEnglish  a001.6424VEN  HAR  aHarrel, William 0aLearn Ventura 4.0 in a day  c1993bNew Delhi : BPB,  a106  aVentura