APA-viite (7. p.)

FOGELIN, R. J. (1982). Understanding arguments: An introduction to informal logic (2nd ed.). Harcourt, Brace Jovanovich.

Chicago-viite (17. p.)

FOGELIN, Robert J. Understanding Arguments: An Introduction to Informal Logic. 2nd ed. New York: Harcourt, Brace Jovanovich, 1982.

MLA-viite (9. p.)

FOGELIN, Robert J. Understanding Arguments: An Introduction to Informal Logic. 2nd ed. Harcourt, Brace Jovanovich, 1982.