Michalko, M. (2006). Thinkertoys: A handbook of creative thinking techniques (2a. ed.). Ten Speed Press.
Cita Chicago (17th ed.)Michalko, Michael. Thinkertoys: A Handbook of Creative Thinking Techniques. 2a. ed. Berkeley: Ten Speed Press, 2006.
Cita MLA (9th ed.)Michalko, Michael. Thinkertoys: A Handbook of Creative Thinking Techniques. 2a. ed. Ten Speed Press, 2006.
Atenció: Aquestes cites poden no estar 100% correctes.