APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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