APA استشهاد

Friedmann, W. (1967). Legal theory (ed. 5.). Universal Law Publishing.

استشهاد بنمط شيكاغو

Friedmann, W. Legal Theory. ed. 5. Delhi: Universal Law Publishing, 1967.

MLA استشهاد

Friedmann, W. Legal Theory. ed. 5. Universal Law Publishing, 1967.