00338nam a2200133Ia 450000500170000008000170001710000310003424500430006526000320010830000170014058300190015794200110017699900170018720260716043051.0  a19.01.02 I43  aChartrand, Robert Lee, ed.  aInformation technology serving society  bPergamon P.aOxfordGBc1979  axiii, 150 p.  c3/7/00kM2LMGR  cMmI43  c39694d39694