"World Merchant Fleet 2005"(PDF). US Department of Transport - Maritime administration. 2005. Archived from the original(PDF) on 2007-02-21. Retrieved 2007-08-13.
"World Merchant Fleet 2005"(PDF). US Department of Transport - Maritime administration. 2005. Archived from the original(PDF) on 2007-02-21. Retrieved 2007-08-13.