00315nam a2200109Ia 4500008004100000022001700041040002500058082001700083100003200100245003000132260004300162240215s9999    xx            000 0 und d  a0-54-41805-8  aNORSU-DumcNORSU-Dum  a001.433/Sch2  aRichard L. Scheaffer et. al 0aElementary survey sapling  bThomson Learning academic centerc2006