Gaya APA

Paul,Richard, . et al (1989). Critical Thinking Handbook: highschool a guide for redesigning instruction - Active Learning . Rohnet Park: Sonoma State University.

Gaya MLA

Paul,Richard, . et al. "Critical Thinking Handbook: highschool a guide for redesigning instruction - Active Learning". Rohnet Park: Sonoma State University, 1989. Text.