Citazione Stile APA (7a Edizione)

Harris, E. K. (2000). Customer service: A practical approach (2nd ed.). Prentice Hall.

Citazione stile Chigago Style (17a edizione)

Harris, Elaine K. Customer Service: A Practical Approach. 2nd ed. Upper Saddle River, N.J: Prentice Hall, 2000.

Citatione MLA (9a ed.)

Harris, Elaine K. Customer Service: A Practical Approach. 2nd ed. Prentice Hall, 2000.