Cita APA (7th ed.)
Duhigg, C. (2016). Smarter Faster Better: The Secrets of Being Productive. Penguin Random House.
Cita Chicago (17th ed.)
Duhigg, Charles. Smarter Faster Better: The Secrets of Being Productive. London: Penguin Random House, 2016.
Cita MLA (9th ed.)
Duhigg, Charles. Smarter Faster Better: The Secrets of Being Productive. Penguin Random House, 2016.
Atenció: Aquestes cites poden no estar 100% correctes.