APA-Zitierstil (7. Ausg.)

Lele, M. M., & Sheth, J. N. (1987). The customer is key: Gaining an unbeatable advantage through customer satisfaction. Wiley.

Chicago-Zitierstil (17. Ausg.)

Lele, Milind M., und Jagdish N. Sheth. The Customer Is Key: Gaining an Unbeatable Advantage Through Customer Satisfaction. New York u.a: Wiley, 1987.

MLA-Zitierstil (9. Ausg.)

Lele, Milind M., und Jagdish N. Sheth. The Customer Is Key: Gaining an Unbeatable Advantage Through Customer Satisfaction. Wiley, 1987.