Verschaffel,Lieven. (2010). Use of external representations in reasoning and problem solving: Analysis and improvement (2 nd ed.). New York: Routledge.
Chicago Style CitationVerschaffel,Lieven. Use of External Representations in Reasoning and Problem Solving: Analysis and Improvement. 2 nd ed. New York: Routledge, 2010.
MLA CitationVerschaffel,Lieven. Use of External Representations in Reasoning and Problem Solving: Analysis and Improvement. 2 nd ed. New York: Routledge, 2010.
Warning: These citations may not always be 100% accurate.