00277nam a2200109Ia 4500008004100000041000800041082001800049100001500067245002300082260005400105300000800159211209s1978    xx            000 0 und d  aeng  a003.3 N78 GEO  aGEOGFREY G  aSYSTEM SIMULATION   aNEW JERSYbPRENTICE-HALL OF INDIA PVT. LTD.c1978  a336