Não informado. (1962). International commerce. Bureau of International Commerce.
Lua i Stíl Chicago (17ú heag.)Não informado. International Commerce. Washington: Bureau of International Commerce, 1962.
Lua MLA (8ú heag.)Não informado. International Commerce. Bureau of International Commerce, 1962.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.