Gaya APA

Lucas, Robert W.. (2005). Costumer service : building successful skills for the twenty first century . Singapore: McGraw hill.

Gaya Chicago

Lucas, Robert W.. Costumer service : building successful skills for the twenty first century. Singapore: McGraw hill, 2005. Text.

Gaya MLA

Lucas, Robert W.. Costumer service : building successful skills for the twenty first century. Singapore: McGraw hill, 2005. Text.

Gaya Turabian

Lucas, Robert W.. Costumer service : building successful skills for the twenty first century. Singapore: McGraw hill, 2005. Print.