Gardner, M. (1963). Martin Gardner's Sixth book of mathematical games from Scientific American (NA.). W.H. Freeman and Company.
Style de citation Chicago (17e éd.)Gardner, Martin. Martin Gardner's Sixth Book of Mathematical Games from Scientific American. NA. San Francisco: W.H. Freeman and Company, 1963.
Style de citation MLA (9e éd.)Gardner, Martin. Martin Gardner's Sixth Book of Mathematical Games from Scientific American. NA. W.H. Freeman and Company, 1963.
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