Style de citation APA (7e éd.)

Wren-Lewis, S. (2019). The happiness problem: Expecting better in an uncertain world. Policy Press.

Style de citation Chicago (17e éd.)

Wren-Lewis, Sam. The Happiness Problem: Expecting Better in an Uncertain World. Bristol, UK ; Chicago, IL: Policy Press, 2019.

Style de citation MLA (8e éd.)

Wren-Lewis, Sam. The Happiness Problem: Expecting Better in an Uncertain World. Policy Press, 2019.