Schuh, F., G�obel, F., & O'Beirne, T. H. (1968). The master book of mathematical recreations. Dover Publications, Inc..
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Chicago-čujuhus (17. p.)
Schuh, Frederik, F. G�obel, juo T. H. O'Beirne. The Master Book of Mathematical Recreations. Mineola, New York: Dover Publications, Inc., 1968.
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MLA-čujuhus (9. p.)
Schuh, Frederik, et al. The Master Book of Mathematical Recreations. Dover Publications, Inc., 1968.
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