APA (7th ed.) Zitazioa
ebrary, Inc, & Karoly, L. A. (1998). Investing in our children: What we know and don't know about the costs and benefits of early childhood interventions. Rand.
Chicago Style (17th ed.) Zitazioa
ebrary, Inc, eta Lynn A. Karoly. Investing in Our Children: What We Know and Don't Know About the Costs and Benefits of Early Childhood Interventions. Santa Monica, CA: Rand, 1998.
MLA (9th ed.) Zitazioa
ebrary, Inc, eta Lynn A. Karoly. Investing in Our Children: What We Know and Don't Know About the Costs and Benefits of Early Childhood Interventions. Rand, 1998.
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