Style de citation APA (7e éd.)

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

Style de citation Chicago (17e éd.)

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

Style de citation MLA (8e éd.)

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

Attention : ces citations peuvent ne pas être correctes à 100%.