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