Fogelin, R. J. (2001). Understanding arguments: An introduction to informal logic. Fort Worth, TX: Harcourt College Publishers.
Chicago-stil citatFogelin, Robert J. Understanding Arguments: An Introduction to Informal Logic. Fort Worth, TX: Harcourt College Publishers, 2001.
MLA-referensFogelin, Robert J. Understanding Arguments: An Introduction to Informal Logic. Fort Worth, TX: Harcourt College Publishers, 2001.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.