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