National Research Council (U.S.). Committee on Strengthening Benefit-Cost Methodology for the Evaluation of Early Childhood Internetions, National Research Council (U.S.). Board on Children, Youth, and Families, ebrary, Inc, Workshop on Strengthening Benefit-Cost Methodology for the Evaluation of Early Childhood Interventions, & Beatty, A. S. (2009). Strengthening benefit-cost analysis for early childhood interventions: Workshop summary. National Academies Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)National Research Council (U.S.). Committee on Strengthening Benefit-Cost Methodology for the Evaluation of Early Childhood Internetions, Youth National Research Council (U.S.). Board on Children, Inc ebrary, Workshop on Strengthening Benefit-Cost Methodology for the Evaluation of Early Childhood Interventions, و Alexandra S. Beatty. Strengthening Benefit-cost Analysis for Early Childhood Interventions: Workshop Summary. Washington, D.C.: National Academies Press, 2009.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)National Research Council (U.S.). Committee on Strengthening Benefit-Cost Methodology for the Evaluation of Early Childhood Internetions, et al. Strengthening Benefit-cost Analysis for Early Childhood Interventions: Workshop Summary. National Academies Press, 2009.