Books by Jill Houbeé:
![[Info]](https://onlinebooks.library.upenn.edu/info.gif)
Houbeé, Jill: Investing in Our Children: What We Know and Don't Know About the Costs and Benefits of Early Childhood Interventions, also by Lynn A. Karoly, Peter W. Greenwood, Susan S. Everingham, M. Rebecca Kilburn, C. Peter Rydell, Matthew Sanders, and James Chiesa (PDF files at rand.org)
Find more by Jill Houbeé at your library, or elsewhere.