APA (7th ed.) Citation

Trappe, T., & Tullis, G. (2008). Intelligent business: Intermediate business English. Coursebook (1st published, 4th imp.). Pearson Education.

Chicago Style (17th ed.) Citation

Trappe, Tonya, and Graham Tullis. Intelligent Business: Intermediate Business English. Coursebook. 1st published, 4th imp. Harlow: Pearson Education, 2008.

MLA (9th ed.) Citation

Trappe, Tonya, and Graham Tullis. Intelligent Business: Intermediate Business English. Coursebook. 1st published, 4th imp. Pearson Education, 2008.