Cita APA (7th ed.)
Toulmin, S. (2001). Return to reason. Harvard University Press.
Cita Chicago (17th ed.)
Toulmin, Stephen. Return to Reason. Cambridge, MA: Harvard University Press, 2001.
Cita MLA (9th ed.)
Toulmin, Stephen. Return to Reason. Harvard University Press, 2001.
Atenció: Aquestes cites poden no estar 100% correctes.