Citazione Stile APA (7a Edizione)

Discovery Channel (Firm), Discovery Communications, Inc, Maltby, C., & Wrobel, P. (2007). Seven wonders of the World. Discovery Channel Communications.

Citazione stile Chigago Style (17a edizione)

Discovery Channel (Firm), Inc Discovery Communications, Clive Maltby, e Patricia Wrobel. Seven Wonders of the World. [United States]: Discovery Channel Communications, 2007.

Citatione MLA (9a ed.)

Discovery Channel (Firm), et al. Seven Wonders of the World. Discovery Channel Communications, 2007.