00396nam a2200133 a 450000500170000000800410001702000180005805000220007624500510009826000270014930000090017665000480018565000290023320140412111416.0070926s19uu    xx            00    eng d  a0-7214-3199-2  aM 372.7bF95 1990  aFun with maths /cCompiled by John Drinkwater.  aU.K :bLadybird books.  a24p.  aScientific recreationsxJuvenile literature  aMathematical recreations