Close, Avrille. (1992). Flexible learning for balanced science: Resources for initial teacher training and inset. H.M.S.O.
Lua i Stíl Chicago (17ú heag.)Close, Avrille. Flexible Learning for Balanced Science: Resources for Initial Teacher Training and Inset. London: H.M.S.O, 1992.
Lua MLA (9ú heag.)Close, Avrille. Flexible Learning for Balanced Science: Resources for Initial Teacher Training and Inset. H.M.S.O, 1992.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.