Foresman, G. A., Fosl, P. S., & Watson, J. C. (2017). The Critical thinking toolkit. Wiley.
Lua i Stíl Chicago (17ú heag.)Foresman, Galen A., Peter S. Fosl, agus Jamie C. Watson. The Critical Thinking Toolkit. United Kingdom: Wiley, 2017.
Lua MLA (9ú heag.)Foresman, Galen A., et al. The Critical Thinking Toolkit. Wiley, 2017.
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