Παραπομπή APA

Friedmann, W. (1967). Legal theory (5th ed.). Stevens & sons.

Παραπομπή Chicago Style

Friedmann, W. Legal Theory. 5th ed. London: Stevens & sons, 1967.

Παραπομπή MLA

Friedmann, W. Legal Theory. 5th ed. Stevens & sons, 1967.