APA-Zitierstil (7. Ausg.)

Ruggiero, V. R. (2015). Becoming a critical thinker (Eighth edition.). Cengage Learning.

Chicago-Zitierstil (17. Ausg.)

Ruggiero, Vincent Ryan. Becoming a Critical Thinker. Eighth edition. Stamford, Connecticut: Cengage Learning, 2015.

MLA-Zitierstil (9. Ausg.)

Ruggiero, Vincent Ryan. Becoming a Critical Thinker. Eighth edition. Cengage Learning, 2015.