Não informado. (1973). European Rubber Journal. Crain Communication.
Lua i Stíl Chicago (17ú heag.)Não informado. European Rubber Journal. London: Crain Communication, 1973.
Lua MLA (8ú heag.)Não informado. European Rubber Journal. Crain Communication, 1973.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.