Prifysgol Bangor
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1/07/11 → 31/07/12
Project: Ymchwil
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1/11/08 → 31/01/15
Project: Ymchwil
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1/05/06 → 30/04/10
Project: Ymchwil
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Owen, L.
1/09/08 → 1/10/12
Project: Ymchwil
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1/09/08 → 31/08/09
Project: Ymchwil
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1/09/08 → 31/08/11
Project: Ymchwil
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1/09/08 → 31/08/09
Project: Ymchwil