(2008). Environmental health and child survival: Epidemiology,economics,experiences. The World Bank.
Chicago Style aipamenaEnvironmental Health and Child Survival: Epidemiology,economics,experiences. Washington, D.C.: The World Bank, 2008.
MLA aipamenaEnvironmental Health and Child Survival: Epidemiology,economics,experiences. The World Bank, 2008.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.