APA (7e ed.) Bronvermelding

Não informado. (2004). Teaching thinking & problem solving. Research for Better Schools.

Chicago (17e ed.) Bronvermelding

Não informado. Teaching Thinking & Problem Solving. Philadelphia, Pa: Research for Better Schools, 2004.

MLA (8e ed.) Bronvermelding

Não informado. Teaching Thinking & Problem Solving. Research for Better Schools, 2004.

Let op: Deze citaties zijn niet altijd 100% accuraat.