Jeyaratnam, J. Occupational health in developing countries. Oxford University Press.
Chicago-referens (17:e uppl.)Jeyaratnam, J. Occupational Health in Developing Countries. Oxford University Press.
MLA-referens (8:e uppl.)Jeyaratnam, J. Occupational Health in Developing Countries. Oxford University Press.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.