1992 Challenger at Sea, Princeton, Princeton University Press, page 57• The Mediterranean Was a Desert" by Kenneth J | National Geographic Atlas of the World: Revised Sixth Edition, National Geographic Society, 1992• "Introduction" U-Boat Operations of the Second World War—Vol 1 by Wynn, Kenneth, 1998 p |
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All Things Considered, National Public Radio, 30 Nov, 2005 |
Example: BBC Click - Episode 04 April 2009• International Hydrographic Organization Special Publication No.
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