Walton, D. N. (2008). Informal logic: A pragmatic approach (2nd ed.). Cambridge University Press.
Chicago Edition CitationWalton, Douglas N. Informal Logic: A Pragmatic Approach. 2nd ed. Cambridge ; New York: Cambridge University Press, 2008.
Deismireacht MLAWalton, Douglas N. Informal Logic: A Pragmatic Approach. 2nd ed. Cambridge University Press, 2008.
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