APA-viite (7. p.)

Garber, P. R. (2005). 25 Reproducible Activities for Customer Service Excellence. Prentice-Hall of India Pvt. Ltd.

Chicago-viite (17. p.)

Garber, Peter R. 25 Reproducible Activities for Customer Service Excellence. New Delhi: Prentice-Hall of India Pvt. Ltd, 2005.

MLA-viite (9. p.)

Garber, Peter R. 25 Reproducible Activities for Customer Service Excellence. Prentice-Hall of India Pvt. Ltd, 2005.