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Lua i Stíl Chicago (17ú heag.)The National Association for Research in science Teaching. Abstracts of Presented Papers, Narst. Ohio, Estados Unidos: ERIC, 1974.
Lua MLA (9ú heag.)The National Association for Research in science Teaching. Abstracts of Presented Papers, Narst. ERIC, 1974.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.