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1LlyfrCyhoeddwyd 1981“...European Federation of Chemical Engineering...”
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2LlyfrCyhoeddwyd 1983“...European Federation of Chemical Engineering...”
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3LlyfrCyhoeddwyd 1972“...European Federation of Chemical Engineering...”
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4LlyfrCyhoeddwyd 1981“...European Federation of Chemical Engineering...”
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5LlyfrCyhoeddwyd 1981“...European Federation of Chemical Engineering...”
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6Trafodyn Cynhadledd LlyfrCyhoeddwyd 1982“...European Federation of Chemical Engineering. Working Party on Crystallization...”
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7Trafodyn Cynhadledd LlyfrCyhoeddwyd 1979“...European Federation of Chemical Engineering. Working Party on Crystallization...”
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8Trafodyn Cynhadledd LlyfrCyhoeddwyd 1966“...European Federation of Chemical Engineering...”
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9Trafodyn Cynhadledd LlyfrCyhoeddwyd 1968“...European Federation of Chemical Engineering. Congress...”
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10Trafodyn Cynhadledd LlyfrCyhoeddwyd 1976“...European Federation of Chemical Engineering...”
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11Trafodyn Cynhadledd LlyfrCyhoeddwyd 1966“...European Federation of Chemical Engineering...”
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12LlyfrCyhoeddwyd 1983“...European Federation of Chemical Engineering...”
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13Trafodyn Cynhadledd LlyfrCyhoeddwyd 1963“...European Federation of Chemical Engineering. Congress...”
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14Trafodyn Cynhadledd LlyfrCyhoeddwyd 1966“...European Federation of Chemical Engineering...”
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15Trafodyn Cynhadledd LlyfrCyhoeddwyd 1971“...European Federation of Chemical Engineering. Working Party for Chemical Reaction Engineering...”
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16Trafodyn Cynhadledd LlyfrCyhoeddwyd 1967“...European Federation of Chemical Engineering...”
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17Trafodyn Cynhadledd LlyfrCyhoeddwyd 1976“...European Federation of Chemical Engineering...”
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18Trafodyn Cynhadledd LlyfrCyhoeddwyd 1967“...European Federation of Chemical Engineering...”
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19Trafodyn Cynhadledd LlyfrCyhoeddwyd 1989“...European Federation of Chemical Engineering...”
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20LlyfrCyhoeddwyd 1980“...European Federation of Chemical Engineering...”