Não informado. (1976). Communicator. Institute of Public Relations.
Lua i Stíl Chicago (17ú heag.)Não informado. Communicator. London: Institute of Public Relations, 1976.
Lua MLA (8ú heag.)Não informado. Communicator. Institute of Public Relations, 1976.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.