APA
Parker E. K., . (2003). Closing sales & winning the customer's heart. : Viva books.
Chicago
Parker Emily King, . 2003. Closing sales & winning the customer's heart. : Viva books.
Harvard
Parker E. K., . (2003). Closing sales & winning the customer's heart. : Viva books.
MLA
Parker Emily King, . Closing sales & winning the customer's heart. : Viva books. 2003.