Não informado. Annual report on the progress of rubber technology. Institution of the Rubber Industry.
Lua i Stíl Chicago (17ú heag.)Não informado. Annual Report on the Progress of Rubber Technology. Cambridge, Inglaterra: Institution of the Rubber Industry.
Lua MLA (8ú heag.)Não informado. Annual Report on the Progress of Rubber Technology. Institution of the Rubber Industry.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.