The World Factbook (1990)/Atlantic Ocean - Wikisource, the free
Details - The World Factbook
Details - The World Factbook
Details - The World Factbook
Atlantic Ocean - The World Factbook
Details - The World Factbook
Details - The World Factbook
Details - The World Factbook
Details - The World Factbook
CIA - The World Factbook -- Arctic Ocean
The World Factbook (1990)/Indian Ocean - Wikisource, the free
Borders of the oceans - Wikipedia
Details - The World Factbook
Details - The World Factbook