Organisation for Economic Co-operation and Development, ProQuest (Firm), Hopkins, D., Nusche, D., & Pont, B. (2008). Improving school leadership. OECD.
Παραπομπή σε μορφή Chicago (17η εκδ.)Organisation for Economic Co-operation and Development, ProQuest (Firm), David Hopkins, Deborah Nusche, και Beatriz Pont. Improving School Leadership. Paris: OECD, 2008.
Παραπομπή σε μορφή MLA (9th εκδ.)Organisation for Economic Co-operation and Development, et al. Improving School Leadership. OECD, 2008.
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