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1Llyfrgan Fjerdingstad, Einer“...American Society for Testing and Materials. Committee D-19 on Water...”
Cyhoeddwyd 1979
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2LlyfrCyhoeddwyd 1981“...American Society for Testing and Materials. Committee D-19 on Water...”
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3LlyfrCyhoeddwyd 1979“...American Society for Testing and Materials. Committee D-19 on Water...”
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4LlyfrCyhoeddwyd 1986“...American Society for Testing and Materials. Committee D-19 on Water...”
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5LlyfrCyhoeddwyd 1980“...American Society for Testing and Materials. Committee D-19 on Water...”
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6LlyfrCyhoeddwyd 1984“...American Society for Testing and Materials. Committee D-19 on Water...”
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7LlyfrCyhoeddwyd 1984“...American Society for Testing and Materials. Committee D-19 on Water...”
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8LlyfrCyhoeddwyd 1981“...American Society for Testing and Materials. Committee D-19 on Water...”
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9LlyfrCyhoeddwyd 1979“...American Society for Testing and Materials. Committee D-19 on Water...”
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10LlyfrCyhoeddwyd 1977“...American Society for Testing and Materials. Committee D-19 on Water...”
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11Trafodyn Cynhadledd LlyfrCyhoeddwyd 1981“...American Society for Testing and Materials. Committee D-19 on Water...”
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12LlyfrCyhoeddwyd 1969“...American Society for Testing and Materials. Committee D-19 on Water...”
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13Trafodyn Cynhadledd LlyfrCyhoeddwyd 1969“...American Society for Testing and Materials. Committee D-19 on Water...”
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14Trafodyn Cynhadledd LlyfrCyhoeddwyd 1973“...American Society for Testing and Materials. Committee D-19 on Water...”
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15Trafodyn Cynhadledd LlyfrCyhoeddwyd 1979“...American Society for Testing and Materials. Committee D-19 on Water...”
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16LlyfrCyhoeddwyd 1980“...American Society for Testing and Materials. Committee D-19 on Water...”