Cita APA

Albert Karl, & J. Bradford Lawrence. (1990). The Service Advantage: How to Identify and Fulfill Customer Needs (In lần thứ 1.). U.S.A: Dow Jones - Irwin.

Citación estilo Chicago

Albert Karl, y J. Bradford Lawrence. The Service Advantage: How to Identify and Fulfill Customer Needs. In lần thứ 1. U.S.A: Dow Jones - Irwin, 1990.

Cita MLA

Albert Karl, y J. Bradford Lawrence. The Service Advantage: How to Identify and Fulfill Customer Needs. In lần thứ 1. U.S.A: Dow Jones - Irwin, 1990.