Hawkins, K. (1992). The Uses of discretion. Clarendon Press.
Lua i Stíl Chicago (17ú heag.)Hawkins, Keith. The Uses of Discretion. Oxford: Clarendon Press, 1992.
Lua MLA (9ú heag.)Hawkins, Keith. The Uses of Discretion. Clarendon Press, 1992.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.