Michaloko M. (2006). Thinkertoys: A handbook of Creative-thinking techniques (2nd.). TSP.
Cita Chicago (17th ed.)Michaloko M. Thinkertoys: A Handbook of Creative-thinking Techniques. 2nd. TSP, 2006.
Cita MLA (9th ed.)Michaloko M. Thinkertoys: A Handbook of Creative-thinking Techniques. 2nd. TSP, 2006.
Atenció: Aquestes cites poden no estar 100% correctes.