Bono, E. (1990). Lateral thinking: A Textbook of Creativity. Penguin.
Cita Chicago (17th ed.)Bono, Edward. Lateral Thinking: A Textbook of Creativity. England: Penguin, 1990.
Cita MLA (9th ed.)Bono, Edward. Lateral Thinking: A Textbook of Creativity. Penguin, 1990.
Atenció: Aquestes cites poden no estar 100% correctes.