APA (7th ed.) Zitazioa

Parent, J. M. (2011). Uniting States: Voluntary union in World politics. U. pr..

Chicago Style (17th ed.) Zitazioa

Parent, Joseph M. Uniting States: Voluntary Union in World Politics. Oxford: U. pr., 2011.

MLA (9th ed.) Zitazioa

Parent, Joseph M. Uniting States: Voluntary Union in World Politics. U. pr., 2011.