APA (7th ed.) Zitazioa

Berra, J. (2010). American independent. Intellect.

Chicago Style (17th ed.) Zitazioa

Berra, John. American Independent. Bristol, UK: Intellect, 2010.

MLA (9th ed.) Zitazioa

Berra, John. American Independent. Intellect, 2010.