APA ציטוט

 Trappe, T. (2005).  Intelligent Business: Coursebook. Intermediate Business English.  Pearson Education Limited.

Trích dẫn kiểu Chicago

 Trappe, Tonya.  Intelligent Business: Coursebook. Intermediate Business English.  Pearson Education Limited, 2005.

ציטוט MLA

 Trappe, Tonya.  Intelligent Business: Coursebook. Intermediate Business English.  Pearson Education Limited, 2005.