APA (7e ed.) Bronvermelding

Johns, T. (1994). Perfect customer care: All you need to get it right first time. Arrow, Random House.

Chicago (17e ed.) Bronvermelding

Johns, Ted. Perfect Customer Care: All You Need to Get It Right First Time. London : UK: Arrow, Random House, 1994.

MLA (8e ed.) Bronvermelding

Johns, Ted. Perfect Customer Care: All You Need to Get It Right First Time. Arrow, Random House, 1994.