Cita APA (7th ed.)
Holiday, R. (2016). Ego is the enemy. Profile Books Ltd..
Cita Chicago (17th ed.)
Holiday, Ryan. Ego Is the Enemy. Bevin Way, London: Profile Books Ltd., 2016.
Cita MLA (9th ed.)
Holiday, Ryan. Ego Is the Enemy. Profile Books Ltd., 2016.
Atenció: Aquestes cites poden no estar 100% correctes.