Lee Kiefer. (2009). Global Marketing Management. Oxford University.
Lua i Stíl Chicago (17ú heag.)Lee Kiefer. Global Marketing Management. New Delhi: Oxford University, 2009.
Lua MLA (9ú heag.)Lee Kiefer. Global Marketing Management. Oxford University, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.