Athey, C. (1990). Extending thought in young children: A parent-teacher partnership. PCP/Sage Publications.
Lua i Stíl Chicago (17ú heag.)Athey, Chris. Extending Thought in Young Children: A Parent-teacher Partnership. Thousand Oaks, CA: PCP/Sage Publications, 1990.
Lua MLA (8ú heag.)Athey, Chris. Extending Thought in Young Children: A Parent-teacher Partnership. PCP/Sage Publications, 1990.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.