APA (7th ed.) Citation

Fogelin, R. J. (1987). Understanding arguments: An introduction to informal logic (3ª ed.). Harcourt Brace Jovanovich.

Chicago Style (17th ed.) Citation

Fogelin, Robert J. Understanding Arguments: An Introduction to Informal Logic. 3ª ed. Harcourt Brace Jovanovich, 1987.

MLA (9th ed.) Citation

Fogelin, Robert J. Understanding Arguments: An Introduction to Informal Logic. 3ª ed. Harcourt Brace Jovanovich, 1987.