APA aipamena

Tucker, R. (2000). Customer service for the new millennium. East west Books.

Chicago Style aipamena

Tucker, Robert. Customer Service for the New Millennium. Chennai: East west Books, 2000.

MLA aipamena

Tucker, Robert. Customer Service for the New Millennium. East west Books, 2000.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.