APA (7th ed.) Zitazioa

RUSSELL, B. (1968). The conquest of happiness. Unwin Books.

Chicago Style (17th ed.) Zitazioa

RUSSELL, Bertrand. The Conquest of Happiness. London: Unwin Books, 1968.

MLA (9th ed.) Zitazioa

RUSSELL, Bertrand. The Conquest of Happiness. Unwin Books, 1968.