Gaya APA

Zikmund, W, G., D'Amico, M. (1984). Marketing : William G. Zikmund and Michael D'Amico . New York: John Wiley and Sond.

Gaya MLA

Zikmund, William, G.., D'Amico, Michael. "Marketing : William G. Zikmund and Michael D'Amico". New York: John Wiley and Sond, 1984. BUKU.