Παραπομπή APA

Edward De Bono. (2008). The Free Mind: A Lateral Thinking Approach. Jaico Publishing.

Παραπομπή Chicago Style

Edward De Bono. The Free Mind: A Lateral Thinking Approach. Mumbai: Jaico Publishing, 2008.

Παραπομπή MLA

Edward De Bono. The Free Mind: A Lateral Thinking Approach. Jaico Publishing, 2008.