APA-Zitierstil (7. Ausg.)

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.

Chicago-Zitierstil (17. Ausg.)

Elder, Linda, und 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, N.J.: FT Press, 2013.

MLA-Zitierstil (8. Ausg.)

Elder, Linda, und 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.