APA aipamena

Fogelin, R. J. (2005). Understanding arguments: An introduction to informal logic (7th ed.). Thomson Wadsworth.

Chicago Style aipamena

Fogelin, Robert J. Understanding Arguments: An Introduction to Informal Logic. 7th ed. Belmont, Calif: Thomson Wadsworth, 2005.

MLA aipamena

Fogelin, Robert J. Understanding Arguments: An Introduction to Informal Logic. 7th ed. Thomson Wadsworth, 2005.