Cita APA (7a ed.)

Johnson, T., & Jakeman, M. (1997). The customer challenge: The inside story of a remarkable transformation in customer service (1st published in Great Britain.). Pitman.

Cita Chicago Style (17a ed.)

Johnson, Tom, y Mark Jakeman. The Customer Challenge: The Inside Story of a Remarkable Transformation in Customer Service. 1st published in Great Britain. London [etc.]: Pitman, 1997.

Cita MLA (9a ed.)

Johnson, Tom, y Mark Jakeman. The Customer Challenge: The Inside Story of a Remarkable Transformation in Customer Service. 1st published in Great Britain. Pitman, 1997.