Não informado. (1979). Educational Evaluation and Policy Analysis. American Educational Research Association.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Educational Evaluation and Policy Analysis. Washington: American Educational Research Association, 1979.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Educational Evaluation and Policy Analysis. American Educational Research Association, 1979.
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