Cita APA (7th ed.)
Carrion, R. (2004). U.S.A. immigration guide (5th ed.). Sphinx Pub..
Cita Chicago (17th ed.)
Carrion, Ramon. U.S.A. Immigration Guide. 5th ed. Naperville, Ill.: Sphinx Pub., 2004.
Cita MLA (9th ed.)
Carrion, Ramon. U.S.A. Immigration Guide. 5th ed. Sphinx Pub., 2004.
Atenció: Aquestes cites poden no estar 100% correctes.