Cita APA (7th ed.)

Zikmund, W. G., & d'Amico, M. (2001). The power of marketing: Creating and keeping customers in an e-commerce world. South-Western Thomson Learning.

Cita Chicago (17th ed.)

Zikmund, William G., i Michael d'Amico. The Power of Marketing: Creating and Keeping Customers in an E-commerce World. Singapore: South-Western Thomson Learning, 2001.

Cita MLA (9th ed.)

Zikmund, William G., i Michael d'Amico. The Power of Marketing: Creating and Keeping Customers in an E-commerce World. South-Western Thomson Learning, 2001.