World Health Organization. (1997). Health imperatives for South - East Asia. World Health organization.
Chicago Style aipamenaWorld Health Organization. Health Imperatives for South - East Asia. New Delhi: World Health organization, 1997.
MLA aipamenaWorld Health Organization. Health Imperatives for South - East Asia. World Health organization, 1997.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.