APA (7th ed.) Citation

Holiday, R. (2016). Ego is the enemy. Portfolio, Penguin.

Chicago Style (17th ed.) Citation

Holiday, Ryan. Ego Is the Enemy. New York, New York: Portfolio, Penguin, 2016.

MLA (8th ed.) Citation

Holiday, Ryan. Ego Is the Enemy. Portfolio, Penguin, 2016.

Warning: These citations may not always be 100% accurate.