Hare, R. M. (1963). Freedom and reason. Clarendon Press.
Lua i Stíl Chicago (17ú heag.)Hare, R. M. Freedom and Reason. Oxford: Clarendon Press, 1963.
Lua MLA (8ú heag.)Hare, R. M. Freedom and Reason. Clarendon Press, 1963.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.