Cita APA (7th ed.)

(2005). The Great Wall: World Cultural Heritage Site. s.n.].

Cita Chicago (17th ed.)

The Great Wall: World Cultural Heritage Site. [China: s.n.], 2005.

Cita MLA (9th ed.)

The Great Wall: World Cultural Heritage Site. s.n.], 2005.

Atenció: Aquestes cites poden no estar 100% correctes.