APA

belding s., . (2005). dealing with the customer from hell. london: kogan page.

Chicago

belding shaun, . 2005. dealing with the customer from hell. london: kogan page.

Harvard

belding s., . (2005). dealing with the customer from hell. london: kogan page.

MLA

belding shaun, . dealing with the customer from hell. london: kogan page. 2005.