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Lua i Stíl Chicago (17ú heag.)Gordon, Ira J. On Early Learning: The Modifiability of Human Potential. Washington, DC: ASCD, 1971.
Lua MLA (9ú heag.)Gordon, Ira J. On Early Learning: The Modifiability of Human Potential. ASCD, 1971.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.