Cita APA (7th ed.)

Discovery Channel (Firm) & Hatchwell, E. (2008). Italy (5th ed.). Apa Productions.

Cita Chicago (17th ed.)

Discovery Channel (Firm) i Emily Hatchwell. Italy. 5th ed. Singapore: Apa Productions, 2008.

Cita MLA (9th ed.)

Discovery Channel (Firm) i Emily Hatchwell. Italy. 5th ed. Apa Productions, 2008.