Citazione Stile APA (7a Edizione)

Click, R. L., & Duening, T. (2005). Business Process outsourcing: : The competitive advantage. John wiley.

Citazione stile Chigago Style (17a edizione)

Click, Rick L., e Thomas Duening. Business Process Outsourcing: : The Competitive Advantage. New Jersey.-: John wiley, 2005.

Citatione MLA (9a ed.)

Click, Rick L., e Thomas Duening. Business Process Outsourcing: : The Competitive Advantage. John wiley, 2005.