CZINKOTA, M. R. (2005). International business ed.7. Thomson Learning.
Lua i Stíl Chicago (17ú heag.)CZINKOTA, Michael R. International Business Ed.7. Thomson Learning, 2005.
Lua MLA (8ú heag.)CZINKOTA, Michael R. International Business Ed.7. Thomson Learning, 2005.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.