00249nam a2200097Ia 4500008004100000082001500041100001400056245004000070250000900110260003200119220204s9999    xx            000 0 und d  a025.5bKAT  aWilliam A 0aIntroduction to reference work. 2 V  aEd.3  aNew YorkbMcGraw Hillc1978