APA citiranje

 Heil, G. (2006).  Employee management and customer service in the retail industry.  Wiley.

Trích dẫn kiểu Chicago

 Heil, Gary.  Employee Management and Customer Service in the Retail Industry.  Wiley, 2006.

MLA citiranje

 Heil, Gary.  Employee Management and Customer Service in the Retail Industry.  Wiley, 2006.

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