South Africa
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- Author: Dorling Kindersley Limited, Brett Michael R., Briggs Philip, Johnson-Barker Brian, Renssen Mariëlle
- Language: English
- Year: 2017
Tidal Model
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- Author: Poppy Buchanan-Barker, Philip J. Barker
- Language: English
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- Author: Philip J. Barker (auth.)
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- Author: David Brandon (auth.) Philip J. Barker PhD Steve Baldwin PhD (eds.)
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- Author: Philip J. Barker (auth.)
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- Author: Philip W Barker
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- Year: 2008
- Author: Prof Philip J Barker Poppy Buchanan-Barker
- Language: English
- Year: 2005