APA (7th ed.) Citation

Baxter, J., & Downing, M. (2001). The Day that shook the world : understanding September 11th: Understanding September 11th. BBC Worldwide.

Chicago Style (17th ed.) Citation

Baxter, Jenny, and Malcolm Downing. The Day That Shook the World : Understanding September 11th: Understanding September 11th. London: BBC Worldwide, 2001.

MLA (9th ed.) Citation

Baxter, Jenny, and Malcolm Downing. The Day That Shook the World : Understanding September 11th: Understanding September 11th. BBC Worldwide, 2001.

Warning: These citations may not always be 100% accurate.