Não informado. (2004). Teaching thinking & problem solving. Research for Better Schools.
Lua i Stíl Chicago (17ú heag.)Não informado. Teaching Thinking & Problem Solving. Philadelphia, Pa: Research for Better Schools, 2004.
Lua MLA (8ú heag.)Não informado. Teaching Thinking & Problem Solving. Research for Better Schools, 2004.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.