APA (7th ed.) Citation

Toulmin, S. (2003). Return to reason (2a. ed.). Harvard University Press.

Chicago Style (17th ed.) Citation

Toulmin, Stephen. Return to Reason. 2a. ed. Cambridge: Harvard University Press, 2003.

MLA (9th ed.) Citation

Toulmin, Stephen. Return to Reason. 2a. ed. Harvard University Press, 2003.