APA (7th ed.) Citation

Huyton, R., & Titchmarsh, A. (2005). A year at Kew. BBC Worldwide.

Chicago Style (17th ed.) Citation

Huyton, Roger, and Alan Titchmarsh. A Year at Kew. London, England: BBC Worldwide, 2005.

MLA (9th ed.) Citation

Huyton, Roger, and Alan Titchmarsh. A Year at Kew. BBC Worldwide, 2005.