APA-viite (7. p.)

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

Chicago-viite (17. p.)

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

MLA-viite (9. p.)

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