Bykvist, K. (2013). On What Matters.
Cita Chicago (17th ed.)Bykvist, K. On What Matters. 2013.
Cita MLA (9th ed.)Bykvist, K. On What Matters. 2013.
Atenció: Aquestes cites poden no estar 100% correctes.
Cita APA (7th ed.)