Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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