00293nam a2200121Ia 4500008004100000020001500041041001200056100001500068245003700083260002700120300000800147650001600155221030s9999    xx            000 0 und d  a8121920590  aEnglish  aD. S. Hira 0aSystem Simulationcby D. S. Hira  bS. ChandaNew Delhic0  a296  aBB Computer