Cita APA (7a ed.)

(1999). Sparks of genius: The thirteen thinking tools of the world's most creative people / Robert and Michèle Root-Bernstein.

Cita Chicago Style (17a ed.)

Sparks of Genius: The Thirteen Thinking Tools of the World's Most Creative People / Robert and Michèle Root-Bernstein. 1999.

Cita MLA (9a ed.)

Sparks of Genius: The Thirteen Thinking Tools of the World's Most Creative People / Robert and Michèle Root-Bernstein. 1999.