Não informado. (1956). Ports and Harbors. International Association of Ports and Harbors.
Lua i Stíl Chicago (17ú heag.)Não informado. Ports and Harbors. Tokyo: International Association of Ports and Harbors, 1956.
Lua MLA (8ú heag.)Não informado. Ports and Harbors. International Association of Ports and Harbors, 1956.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.