APA (7th ed.) Citation

Sinek, S. (2016). Together is better: A little book of inspiration. Portfolio/Penguin.

Chicago Style (17th ed.) Citation

Sinek, Simon. Together Is Better: A Little Book of Inspiration. New York, New York: Portfolio/Penguin, 2016.

MLA (8th ed.) Citation

Sinek, Simon. Together Is Better: A Little Book of Inspiration. Portfolio/Penguin, 2016.

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