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1CylchgrawnCyhoeddwyd 1978“...Association for Educational Communications and Technology...”
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2LlyfrCyhoeddwyd 1977“...Association for Educational Communications and Technology...”
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3Llyfrgan Thompson, Ann (Ann D.)“...Association for Educational Communications and Technology...”
Cyhoeddwyd 1996
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4LlyfrCyhoeddwyd 1980“...Association for Educational Communications and Technology (U.S.)...”
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5LlyfrCyhoeddwyd 1970“...Association for Educational Communications and Technology (U.S.)...”
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6LlyfrCyhoeddwyd 1975“...Association for Educational Communications and Technology (U.S.)...”
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7LlyfrCyhoeddwyd 1971“...Association for Educational Communications and Technology. Teacher Education Committee...”
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8CylchgrawnCyhoeddwyd 1978“...Association for Educational Communications and Technology...”
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9CylchgrawnCyhoeddwyd 1964“...Association for Educational Communications and Technology...”
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10LlyfrCyhoeddwyd 1979“...Association for Educational Communications and Technology...”