00262nam a2200109Ia 4500008004100000082001700041100001100058245003500069250000900104260003100113300000800144240913s9999||||xx |||||||||||||| ||und||  a511.3  TYR/M  aM Tyra 0aMagical book for Quicker Maths  aNULL  bBSC PublishingaNULLc2018  a556