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1BogUdgivet 1982“...Council for Exceptional Children...”
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2BogUdgivet 1965“...Council for Exceptional Children...”
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3BogUdgivet 1978“...Council for Exceptional Children...”
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4
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5
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6Tidsskrift
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7BogUdgivet 1974“...Council for Exceptional Children (U.S.)...”
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8BogUdgivet 1963“...Council for Exceptional Children (U.S.)...”
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9BogUdgivet 1968“...Council for Exceptional Children (U.S.)...”
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10
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11Bogaf Haring, Norris G. (Norris Grover), 1923-“...Council for Exceptional Children (U.S.)...”
Udgivet 1976
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12BogUdgivet 1971“...Council for Exceptional Children (U.S.)...”
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13BogUdgivet 1969“...Council for Exceptional Children (U.S.)...”
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14BogUdgivet 1977“...Council for Exceptional Children (U.S.)...”
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15BogUdgivet 1976“...Council for Exceptional Children (U.S.). Professional Standards and Guidelines Project...”
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16BogUdgivet 1975“...Council for Exceptional Children...”
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17BogUdgivet 1983“...Council for Exceptional Children...”
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18BogUdgivet 1982“...Council for Exceptional Children...”
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19TidsskriftUdgivet 1966“...Council for Exceptional Children. Division on Mental Retardation and Developmental Disabilities...”
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20BogUdgivet 1989“...Council for Exceptional Children. Division on Mental Retardation and Developmental Disabilities...”