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1Cyhoeddwyd 1961“...Dept. of Scientific and Industrial Research,...”
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2Cyhoeddwyd 1966“...Dept. of Scientific and Industrial Research,...”
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3Cyhoeddwyd 1961“...Dept. of Scientific and Industrial Research,...”
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4Cyhoeddwyd 1965“...Dept. of Scientific and Industrial Research,...”
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5Cyhoeddwyd 1965“...Dept. of Scientific and Industrial Research,...”
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6gan Hayward, Bruce W. (Bruce William)“...Dept. of Scientific and Industrial Research,...”
Cyhoeddwyd 1983
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7gan Jenkins, D. L. (David Lloyd), 1922-“...Dept. of Scientific and Industrial Research,...”
Cyhoeddwyd 1976
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9
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10gan Neall, V. E. (Vincent Ernest)“...Dept. of Scientific and Industrial Research,...”
Cyhoeddwyd 1979
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11gan Cook, Richard A. (Richard Alan), 1948-“...Dept. of Scientific and Industrial Research,...”
Cyhoeddwyd 1981
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12Cyhoeddwyd 1958“...Dept. of Scientific and Industrial Research],...”
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13
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14
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15
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16
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17
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18gan Suggate, R. P. (Richard Patrick)“...Dept. of Scientific and Industrial Research,...”
Cyhoeddwyd 1968
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19
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20gan Bowen, Frederick Ernest, 1920-“...Dept. of Scientific and Industrial Research,...”
Cyhoeddwyd 1966
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