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Are you Ernö Rubik, author of the books below?
Cubed by Ernö Rubik A mi kockánk by Ernö Rubik Rubik's Cubic Compendium by Ernö Rubik Rubiks Puzzles by Albie Fiore Il cubo di Rubik. Seguito da un algoritmo per riordinare il cubo by André Warusfel The Cube by Jerry Slocum


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