Não informado. (1929). British plastics. Reed Business Publishing.
Lua i Stíl Chicago (17ú heag.)Não informado. British Plastics. London: Reed Business Publishing, 1929.
Lua MLA (8ú heag.)Não informado. British Plastics. Reed Business Publishing, 1929.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.