Elder, L., & Paul, R. (2013). 30 days to better thinking and better living through critical thinking: A guide for improving every aspect of your life (Rev. and expanded ed.). FT Press.
Čikaški stil citiranja (17. izdanje)Elder, Linda, i Richard Paul. 30 Days to Better Thinking and Better Living Through Critical Thinking: A Guide for Improving Every Aspect of Your Life. Rev. and expanded ed. Upper Saddle River, NJ: FT Press, 2013.
MLA način citiranja (8. izdanje)Elder, Linda, i Richard Paul. 30 Days to Better Thinking and Better Living Through Critical Thinking: A Guide for Improving Every Aspect of Your Life. Rev. and expanded ed. FT Press, 2013.
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