APA ציטוט

 Duening, T. N. (2005).  Essentials of business process outsourcing.  John Wiley & Sons.

Trích dẫn kiểu Chicago

 Duening, Thomas N.  Essentials of Business Process Outsourcing.  John Wiley & Sons, 2005.

ציטוט MLA

 Duening, Thomas N.  Essentials of Business Process Outsourcing.  John Wiley & Sons, 2005.