Não informado. (2000). Saturday Review of Education. Saturday Review Associates.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Saturday Review of Education. San Francisco, Calif: Saturday Review Associates, 2000.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Saturday Review of Education. Saturday Review Associates, 2000.
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