Cita APA (7a ed.)

Argyle, M. (1989). The psychology of happiness. Routledge.

Cita Chicago Style (17a ed.)

Argyle, Michael. The Psychology of Happiness. London [etc.]: Routledge, 1989.

Cita MLA (9a ed.)

Argyle, Michael. The Psychology of Happiness. Routledge, 1989.