Rubik's clockTM
- 63 pages
- 3 hours of reading
Josef Trajber Book order (chronological)
Le Rubik's cube
- 157 pages
- 6 hours of reading
Der Würfel für Fortgeschrittene
- 162 pages
- 6 hours of reading
Der Wurfel
- 143 pages
- 6 hours of reading
Interessantes Exemplar für interessante Leser.