Cita APA

Trappe, T., & Tullis, G. (2005). Intelligent business: Coursebook : upper Intermediate business english [Audio CD 2]. London: Longman.

Citación estilo Chicago

Trappe, Tonya, and Graham Tullis. Intelligent Business: Coursebook : Upper Intermediate Business English [Audio CD 2]. London: Longman, 2005.

Cita MLA

Trappe, Tonya, and Graham Tullis. Intelligent Business: Coursebook : Upper Intermediate Business English [Audio CD 2]. London: Longman, 2005.