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Dictionary of mathematical games, puzzles, and amusements Автор: Eiss H.E. Год: 1988 |
Math and Logic Puzzles for PC Enthusiasts Автор: J. J. Clessa Год: 1996 |
The Master Book of Mathematical Recreations Автор: Schuh F. Год: 1968 |
Green Start Giant Floor Puzzles: ABC Animals (36 Piece Floor Puzzles Made of 98% Recycled Materials) Автор: Ikids Ikids Год: 2010 |
Green Start Wooden Puzzles: Busy Butterfly - Earth Friendly Puzzles with Handy Carry&Storage Case Автор: Ikids Ikids Год: 2010 |
The master book of mathematical recreations Автор: Fred Schuh Год: 1968 |