Cita APA

(2008). Info USA 2007-2008: Your guide to the USA. United States.

Chicago Style Citation

Info USA 2007-2008: Your Guide to the USA. United States, 2008.

Cita MLA

Info USA 2007-2008: Your Guide to the USA. United States, 2008.

Atenció: Aquestes cites poden no estar 100% correctes.