Cita APA (7th ed.)
Carlson, M. (2001). Sergio Leone. Pocket Essentials.
Cita Chicago (17th ed.)
Carlson, Michael. Sergio Leone. Harpenden: Pocket Essentials, 2001.
Cita MLA (9th ed.)
Carlson, Michael. Sergio Leone. Pocket Essentials, 2001.
Atenció: Aquestes cites poden no estar 100% correctes.