Gwatkin, D. R. (2000). Socio-economic differences in health, nutrition, and population in Bolivia. World Bank.
Chicago-viite (17. p.)Gwatkin, Davidson R. Socio-economic Differences in Health, Nutrition, and Population in Bolivia. Washington, D.C: World Bank, 2000.
MLA-viite (9. p.)Gwatkin, Davidson R. Socio-economic Differences in Health, Nutrition, and Population in Bolivia. World Bank, 2000.
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