The complete book of fun maths
Carter Philip J., Russell Kenneth A.Kniha
Citace v seznamu literatury:
CARTER, Philip J. a RUSSELL, Kenneth A. The complete book of fun maths: 250 confidence-boosting tricks, tests, and puzzles. The IQ workout series. Chichester: Wiley, [2004]. ISBN 0470870915. Dostupné také z: http://www.loc.gov/catdir/description/wiley041/2004000227.html.