Citazione Stile APA (7a Edizione)

Ruggiero, V. R. (1996). Becoming a critical thinker (2nd.ed.). Houghton Mifflin.

Citazione stile Chigago Style (17a edizione)

Ruggiero, Vincent Ryan. Becoming a Critical Thinker. 2nd.ed. Rapid: Houghton Mifflin, 1996.

Citatione MLA (9a ed.)

Ruggiero, Vincent Ryan. Becoming a Critical Thinker. 2nd.ed. Houghton Mifflin, 1996.