(1989). Tarif Bea Masuk = Customs Tarif 1989. Antara.
Lua i Stíl Chicago (17ú heag.)Tarif Bea Masuk = Customs Tarif 1989. Antara, 1989.
Lua MLA (8ú heag.)Tarif Bea Masuk = Customs Tarif 1989. Antara, 1989.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.