Vas, L. (2003). Nine roads to success at work and in life. English Edition.
Lua i Stíl Chicago (17ú heag.)Vas, Luis. Nine Roads to Success at Work and in Life. Mumbai: English Edition, 2003.
Lua MLA (9ú heag.)Vas, Luis. Nine Roads to Success at Work and in Life. English Edition, 2003.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.