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1 gen 1968 anni - The Declaration of General and Special Riglltsfor the Mentally Retarded international document is issued by the International League of Societies for The Mentally Handicapped.

Aggiunto al nastro di tempo:

History of special education

Byemeline
12 ago 2019
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2297

Data:

1 gen 1968 anni
Adesso
~ 56 years ago
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