APA-Zitierstil (7. Ausg.)

Cottle, D. W. (1990). Client centered service: How to keep them coming back for more (1. print.). Wiley.

Chicago-Zitierstil (17. Ausg.)

Cottle, David W. Client Centered Service: How to Keep Them Coming Back for More. 1. print. New York u.a: Wiley, 1990.

MLA-Zitierstil (9. Ausg.)

Cottle, David W. Client Centered Service: How to Keep Them Coming Back for More. 1. print. Wiley, 1990.