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