APA citiranje
Gardner, M. (1987). Riddles of the sphinx and other mathematical puzzle tales. Mathematical Association of America.
Chicago Style (17th ed.) Citation
Gardner, Martin. Riddles of the Sphinx and Other Mathematical Puzzle Tales. Washington, D.C.: Mathematical Association of America, 1987.
MLA citiranje
Gardner, Martin. Riddles of the Sphinx and Other Mathematical Puzzle Tales. Mathematical Association of America, 1987.
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