APA
Ravallion M, Chan E, Van De Walle D & Datt G. (1991). Quantifying The Magnitude And Severity Of Absolute Poverty In The Developing World In The Mid-1980s. Washigton: World Bank.
Chicago
Ravallion M, Chan E, Van De Walle D and Datt G. 1991. Quantifying The Magnitude And Severity Of Absolute Poverty In The Developing World In The Mid-1980s. Washigton: World Bank.
Harvard
Ravallion M, Chan E, Van De Walle D and Datt G. (1991). Quantifying The Magnitude And Severity Of Absolute Poverty In The Developing World In The Mid-1980s. Washigton: World Bank.
MLA
Ravallion M, Chan E, Van De Walle D and Datt G. Quantifying The Magnitude And Severity Of Absolute Poverty In The Developing World In The Mid-1980s. Washigton: World Bank. 1991.