Gaya APA

Ben-Shahar, Tal. (2007). Happier: Learn the Secrets to Daily Joy and Lasting Fulfillment . Boston: McGraw-Hill.

Gaya Chicago

Ben-Shahar, Tal. Happier: Learn the Secrets to Daily Joy and Lasting Fulfillment. Boston: McGraw-Hill, 2007. Text.

Gaya MLA

Ben-Shahar, Tal. Happier: Learn the Secrets to Daily Joy and Lasting Fulfillment. Boston: McGraw-Hill, 2007. Text.

Gaya Turabian

Ben-Shahar, Tal. Happier: Learn the Secrets to Daily Joy and Lasting Fulfillment. Boston: McGraw-Hill, 2007. Print.