Cita APA (7th ed.)

Kirpal Singh. (2004). Thinking hats and coloured turbans. Pearson/Prentice Hall.

Cita Chicago (17th ed.)

Kirpal Singh. Thinking Hats and Coloured Turbans. Singapore: Pearson/Prentice Hall, 2004.

Cita MLA (8th ed.)

Kirpal Singh. Thinking Hats and Coloured Turbans. Pearson/Prentice Hall, 2004.