Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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