Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (8th ed.)

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