Cita APA (7th ed.)
Greene, R. (2012). Mastery. Profile Books.
Cita Chicago (17th ed.)
Greene, Robert. Mastery. London: Profile Books, 2012.
Cita MLA (9th ed.)
Greene, Robert. Mastery. Profile Books, 2012.
Atenció: Aquestes cites poden no estar 100% correctes.