The World Bank. (2006). Disease and mortality in Sub-Sahara Africa. Washington: The world bank.
Chicago Style aipamenaThe World Bank. Disease and Mortality in Sub-Sahara Africa. Washington: The world bank, 2006.
MLA aipamenaThe World Bank. Disease and Mortality in Sub-Sahara Africa. Washington: The world bank, 2006.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.