00392nam a2200133 a 450000500170000000800410001702000180005805000280007624500300010426000550013430000110018944000420020065000160024220140412111300.0010329s19uu    xx            00    eng d  a1-56107-278-8  aTR(GS 510.7bMat42 1995  aMathland: daily tune-ups.  aMountain View, CA :bCreative Publications,c1995.  a170 p.  aMathland Journeys Through Mathematics  aMathematics