APA ציטוט

Trappe, T., & Tullis, G. (2005). Intelligent Business Upper Intermediate Coursebook. England: Pearson Education Limit.

Trích dẫn kiểu Chicago

Trappe, Tonya, và Graham Tullis. Intelligent Business Upper Intermediate Coursebook. England: Pearson Education Limit, 2005.

ציטוט MLA

Trappe, Tonya, và Graham Tullis. Intelligent Business Upper Intermediate Coursebook. England: Pearson Education Limit, 2005.