APA (7th ed.) Citation

Trappe, T., & Tullis, G. (2005). Intelligent business: Coursebook : upper Intermediate business english [Audio CD 1]. Longman.

Chicago Style (17th ed.) Citation

Trappe, Tonya, and Graham Tullis. Intelligent Business: Coursebook : Upper Intermediate Business English [Audio CD 1]. London: Longman, 2005.

MLA (9th ed.) Citation

Trappe, Tonya, and Graham Tullis. Intelligent Business: Coursebook : Upper Intermediate Business English [Audio CD 1]. Longman, 2005.

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