Jeyaratnam, J. Occupational health in developing countries. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Jeyaratnam, J. Occupational Health in Developing Countries. Oxford University Press.
Lua MLA (8ú heag.)Jeyaratnam, J. Occupational Health in Developing Countries. Oxford University Press.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.