APA (7e ed.) Bronvermelding

Zikmund, W. G., & D'Amico, M. (1995). Effective marketing: Creating and keeping customers. West Publishing.

Chicago (17e ed.) Bronvermelding

Zikmund, William G., en Michael D'Amico. Effective Marketing: Creating and Keeping Customers. Minneapolis: West Publishing, 1995.

MLA (9e ed.) Bronvermelding

Zikmund, William G., en Michael D'Amico. Effective Marketing: Creating and Keeping Customers. West Publishing, 1995.