Biblioteca da Universidade do Minho

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Guy,, Richard K. Problems books in mathematicsUnsolved problems in number theory Unsolved problems in intuitive mathematics / Richard K. Guy

Unsolved problems in intuitive mathematics / Richard K. Guy . - New York : Springer-Verlag, 1981-19-- . - v. 25 cm . - (Problems books in mathematics) . -
1º vol. : Unsolved problems in number theory. - cop. 1981. - XVIII, 161 p. : il.
0-387-90593-6 (v.1)

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