Não informado. (2004). Teaching thinking & problem solving. Research for Better Schools.
Chicago Style (17. basım) AtıfNão informado. Teaching Thinking & Problem Solving. Philadelphia, Pa: Research for Better Schools, 2004.
MLA (8th ed.) AtıfNão informado. Teaching Thinking & Problem Solving. Research for Better Schools, 2004.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..