APA
Ravallion M., World Bank, . (2011). On the implications of essential heterogeneity for estimatin. Washington DC: World Bank.
Chicago
Ravallion Martin, World Bank, . 2011. On the implications of essential heterogeneity for estimatin. Washington DC: World Bank.
Harvard
Ravallion M., World Bank, . (2011). On the implications of essential heterogeneity for estimatin. Washington DC: World Bank.
MLA
Ravallion Martin, World Bank, . On the implications of essential heterogeneity for estimatin. Washington DC: World Bank. 2011.