MACKIEWICZ, A. (1993). The Economist Intelligence Unit Guide To Building A Global Image. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)MACKIEWICZ, Andrea. The Economist Intelligence Unit Guide To Building A Global Image. McGraw-Hill, 1993.
Lua MLA (8ú heag.)MACKIEWICZ, Andrea. The Economist Intelligence Unit Guide To Building A Global Image. McGraw-Hill, 1993.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.