TY  - BOOK
AU  - Chen, Shaohua
AU  - Ravallion, Martin
ED  - World Bank
TI  - Absolute poverty measures for the developing world, 1991 - 2004
T2  - World Bank policy research working papers
AV  - IBRD(08)PRWP 
PY  - 2007///
CY  - Washington, D.C.
PB  - World Bank
ER  -