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1LlyfrCyhoeddwyd 1982“...ASTM Committee E-6 on Performance of Building Constructions...”
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2LlyfrCyhoeddwyd 1986“...ASTM Committee E-6 on Performance of Building Constructions...”
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3LlyfrCyhoeddwyd 1986“...ASTM Committee E-6 on Performance of Building Constructions...”
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4LlyfrCyhoeddwyd 1989“...ASTM Committee E-6 on Performance of Building Constructions...”
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5Trafodyn Cynhadledd LlyfrCyhoeddwyd 1986“...ASTM Committee E-6 on Performance of Building Constructions...”
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6Trafodyn Cynhadledd LlyfrCyhoeddwyd 1990“...ASTM Committee E-6 on Performance of Building Constructions...”
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7Trafodyn Cynhadledd LlyfrCyhoeddwyd 1980“...ASTM Committee E-6 on Performance of Building Constructions...”