Patterson, Steven W. «Review of Douglas Walton, Informal Logic: A Pragmatic Approach (2nd ed.). Cambridge: Cambridge University Press, 2008, 347pp., $28.99 (pbk), ISBN 9780521713801.». Cogency 1, no. 1 (agosto 31, 2009). Accedido octubre 16, 2025. https://cogency.udp.cl/index.php/cogency/article/view/205.