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1Foilsithe / Cruthaithe 1993Ábhair “...Water quality Western Australia Gwelup....”
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2de réir Gerritse, R. G. (Robert Graham), 1943-Ábhair “...Water table Western Australia Swan River Region....”
Foilsithe / Cruthaithe 1990
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3de réir Pionke, H. B. (Harry B.)Ábhair “...Water table Western Australia Swan River Region....”
Foilsithe / Cruthaithe 1990
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