Amerini, G. (2008). Maritime transport of goods and passengers 1997-2006. Statistics in focus: Transport.
Lua i Stíl Chicago (17ú heag.)Amerini, Giuliano. "Maritime Transport of Goods and Passengers 1997-2006." Statistics in Focus: Transport 2008.
Lua MLA (8ú heag.)Amerini, Giuliano. "Maritime Transport of Goods and Passengers 1997-2006." Statistics in Focus: Transport, 2008.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.