Frazier, A. (1972). Open schools for children. Association for Supervision and Curriculum Development.
Lua i Stíl Chicago (17ú heag.)Frazier, Alexander. Open Schools for Children. Washington, DC: Association for Supervision and Curriculum Development, 1972.
Lua MLA (9ú heag.)Frazier, Alexander. Open Schools for Children. Association for Supervision and Curriculum Development, 1972.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.