Sterne, J. [ca. 1996]. Customer service on the internet : building relationships, increasing loyalty and staying competitive. In Wiley computer publishing (1. [Dr.]) [Book]. New York [u.a.]: Wiley.

STERNE, Jim, 1996. Customer service on the internet : building relationships, increasing loyalty and staying competitive. 1. [Dr.]. New York [u.a.]: Wiley. ISBN 0471155063.

Sterne, J. „Customer service on the internet : building relationships, increasing loyalty and staying competitive“. Wiley computer publishing, 1. [Dr.], book, Wiley, 1996.

Sterne, Jim: Customer service on the internet : building relationships, increasing loyalty and staying competitive, 1. [Dr.]. Aufl. New York [u.a.] 1996.

Sterne, J. (1996), Customer service on the internet : building relationships, increasing loyalty and staying competitive, Wiley computer publishing, 1. [Dr.]., Bd. , Wiley, New York [u.a.].