APA (7th ed.) Citation

Achor, S. (2013). Before happiness: The 5 hidden keys to achieving success, spreading happiness, and sustaining positive change.

Chicago Style (17th ed.) Citation

Achor, Shawn. Before Happiness: The 5 Hidden Keys to Achieving Success, Spreading Happiness, and Sustaining Positive Change. 2013.

MLA (8th ed.) Citation

Achor, Shawn. Before Happiness: The 5 Hidden Keys to Achieving Success, Spreading Happiness, and Sustaining Positive Change. 2013.

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