Cita APA (7th ed.)

Fogelin, R. J. (1982). Understanding arguments: An introduction to informal logic (2nd.ed.). HBJ.

Cita Chicago (17th ed.)

Fogelin, Robert J. Understanding Arguments: An Introduction to Informal Logic. 2nd.ed. New York: HBJ, 1982.

Cita MLA (9th ed.)

Fogelin, Robert J. Understanding Arguments: An Introduction to Informal Logic. 2nd.ed. HBJ, 1982.