Cita APA (7th ed.)

Russell, B. (1968). The Conquest of happiness. Allen Unwin.

Cita Chicago (17th ed.)

Russell, Bertrand. The Conquest of Happiness. London: Allen Unwin, 1968.

Cita MLA (9th ed.)

Russell, Bertrand. The Conquest of Happiness. Allen Unwin, 1968.