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Lua i Stíl Chicago (17ú heag.)Association for Supervision and Curriculum Development agus James R. Squire. A New Look at Progressive Education. Washington, D.C: s.n, 1972.
Lua MLA (9ú heag.)Association for Supervision and Curriculum Development agus James R. Squire. A New Look at Progressive Education. s.n, 1972.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.