FOGELIN, R. J. (1982). Understanding arguments: An introduction to informal logic (2nd ed.). Harcourt, Brace Jovanovich.
Citazione stile Chigago Style (17a edizione)FOGELIN, Robert J. Understanding Arguments: An Introduction to Informal Logic. 2nd ed. New York: Harcourt, Brace Jovanovich, 1982.
Citatione MLA (9a ed.)FOGELIN, Robert J. Understanding Arguments: An Introduction to Informal Logic. 2nd ed. Harcourt, Brace Jovanovich, 1982.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.