Beiler, A. H. (1964). Recreations in the Theory of Numbers: The queen of mathematics entertains. Dover Publications.
Citace podle Chicago (17th ed.)Beiler, Albert H. Recreations in the Theory of Numbers: The Queen of Mathematics Entertains. New York: Dover Publications, 1964.
Citace podle MLA (9th ed.)Beiler, Albert H. Recreations in the Theory of Numbers: The Queen of Mathematics Entertains. Dover Publications, 1964.
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