Cita APA (7th ed.)

Harris, R. (2008). The happiness trap: How to stop struggling and start living. Trumpeter.

Cita Chicago (17th ed.)

Harris, Russ. The Happiness Trap: How to Stop Struggling and Start Living. Boston: Trumpeter, 2008.

Cita MLA (9th ed.)

Harris, Russ. The Happiness Trap: How to Stop Struggling and Start Living. Trumpeter, 2008.