Cita APA (7th ed.)

Schwartz, D. j. The magic of thinking big. Firoza.

Cita Chicago (17th ed.)

Schwartz, David j. The Magic of Thinking Big. Not mentioned: Firoza.

Cita MLA (9th ed.)

Schwartz, David j. The Magic of Thinking Big. Firoza.

Atenció: Aquestes cites poden no estar 100% correctes.