.245
a	The Mystery of the vanishing benefits
b	: Ms. Speedy analyst's introduction to evaluation.
h	Book
.100
a	RAVALLION Martin
.005
a	00000000000000
.260
a	Washington, DC: The World Bank, 1999.
b
c	2000
.084
a	WB EST
.300
a	40 hlm.
b	28 cm.
c	40 hlm.; 28 cm.
.490
a	Policy research working paper series; WPS 2153
.336
a	Book