Martin Gardner «Hexaflexagons and Other Mathematical Diversions: The First Scientific American Book of Puzzles and Games»
Описание: 1-st collection of columns from Scientijic American. Содержание:
|
|||
|
Martin Gardner Hexaflexagons ...
Описание: 1-st collection of columns from Scientijic American. Содержание:
|
|||
|