APA (7th ed.) Zitazioa

Crews-Anderson, T. A. (2007). Critical thinking and informal logic. Humanities-Ebooks.

Chicago Style (17th ed.) Zitazioa

Crews-Anderson, Timothy A. Critical Thinking and Informal Logic. Tirril [England]: Humanities-Ebooks, 2007.

MLA (9th ed.) Zitazioa

Crews-Anderson, Timothy A. Critical Thinking and Informal Logic. Humanities-Ebooks, 2007.