Gaya APA

International marketing / Michael R. Czinkota ; Ilkka A. Ronkainen. (2004). Orlando, FL: Harcourt College, c.

Gaya MLA

International marketing / Michael R. Czinkota ; Ilkka A. Ronkainen. 6th ed.. Orlando, FL: Harcourt College, c, 2004. Buku Wajib.