APA-referens (7:e uppl.)

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

Chicago-referens (17:e uppl.)

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

MLA-referens (9:e uppl.)

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