National Association of Theatre Owners (U.S.). Boxoffice pro. Boxoffice Media.
Cita Chicago (17th ed.)National Association of Theatre Owners (U.S.). Boxoffice Pro. Beverly Hills, CA: Boxoffice Media.
Cita MLA (9th ed.)National Association of Theatre Owners (U.S.). Boxoffice Pro. Boxoffice Media.
Atenció: Aquestes cites poden no estar 100% correctes.