Cita APA (7th ed.)

Walton, D. (2006). Fundamentals of critical argumentation (1a. ed.). Cambridge University.

Cita Chicago (17th ed.)

Walton, Douglas. Fundamentals of Critical Argumentation. 1a. ed. Cambridge: Cambridge University, 2006.

Cita MLA (9th ed.)

Walton, Douglas. Fundamentals of Critical Argumentation. 1a. ed. Cambridge University, 2006.