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1Cyfresol“...American Society of Heating, Refrigerating and Air-Conditioning Engineers...”
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2LlyfrCyhoeddwyd 1967“...American Society of Heating, Refrigerating and Air-Conditioning Engineers...”
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3LlyfrCyhoeddwyd 1987“...American Society of Heating, Refrigerating and Air-Conditioning Engineers...”
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4CyfresolCyhoeddwyd 1991“...American Society of Heating, Refrigerating and Air-Conditioning Engineers...”
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5CylchgrawnCyhoeddwyd 1973“...American Society of Heating, Refrigerating and Air-Conditioning Engineers...”
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6Llyfrgan Rock, Brian A. (Brian Allan)“...American Society of Heating, Refrigerating and Air-Conditioning Engineers...”
Cyhoeddwyd 2002
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7Llyfrgan Schaffer, Mark E., 1949-“...American Society of Heating, Refrigerating and Air-Conditioning Engineers...”
Cyhoeddwyd 1991
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8Llyfrgan Clodic, D. (Denis)“...American Society of Heating, Refrigerating and Air-Conditioning Engineers...”
Cyhoeddwyd 1994
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9Cylchgrawn“...American Society of Heating, Refrigerating and Air-Conditioning Engineers...”
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10CyfresolCyhoeddwyd 1981“...American Society of Heating, Refrigerating and Air-Conditioning Engineers...”
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11CyfresolCyhoeddwyd 1992“...American Society of Heating, Refrigerating and Air-Conditioning Engineers...”
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12LlyfrCyhoeddwyd 1972“...American Society of Heating, Refrigerating and Air-Conditioning Engineers...”
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13CyfresolCyhoeddwyd 1982“...American Society of Heating, Refrigerating and Air-Conditioning Engineers...”
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14CylchgrawnCyhoeddwyd 1985“...American Society of Heating, Refrigerating and Air-Conditioning Engineers...”
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15CyfresolCyhoeddwyd 1986“...American Society of Heating, Refrigerating and Air-Conditioning Engineers...”
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16CyfresolCyhoeddwyd 1984“...American Society of Heating, Refrigerating and Air-Conditioning Engineers...”
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17CyfresolCyhoeddwyd 1981“...American Society of Heating, Refrigerating and Air-Conditioning Engineers...”
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18CyfresolCyhoeddwyd 1974“...American Society of Heating, Refrigerating and Air-Conditioning Engineers...”
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19CyfresolCyhoeddwyd 1983“...American Society of Heating, Refrigerating and Air-Conditioning Engineers...”
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20Llyfrgan James, Timothy B.“...American Society of Heating, Refrigerating and Air-Conditioning Engineers...”
Cyhoeddwyd 1993