Karoly, L. A.
,
Greenwood, P.
,
Everingham, S. S.
,
Hoube, J.
,
Kilburn, R.
,
Rydell, C. P.
,
Sanders. M.
and
Chiesa, J.
(1998) Investing in Our Children: What We Know and
Don’t Know about the Costs and Benefits of Early Childhood
Interventions.
Santa Monica, CA: Rand
.
2.
Zigler, E.
and
Hall, N. W.
(2000) Child Development and Social Policy.
Boston, MA: McGraw-Hill
.
