Παραπομπή APA

Zikmund, W., & Amico, M. D. (1984). Marketing. John Wiley.

Παραπομπή Chicago Style

Zikmund, William, και Michael D. Amico. Marketing. New York: John Wiley, 1984.

Παραπομπή MLA

Zikmund, William, και Michael D. Amico. Marketing. John Wiley, 1984.