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Edward Zigler served as first director of the Office of Child Development in Washington. Kirby Heller is a postdoctoral fellow at Yale's Bush Center in Child Development and Social Policy which Professor Zigler directs. Drs. Zigler and Heller can be contacted at the Bush Center, Box 11A Yale Station, Yale University, New Haven Connecticut 06520.
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Zigler, E., Heller, K.A. Day care standards approach critical juncture. Early Childhood Educ J 7, 7–8 (1980). https://doi.org/10.1007/BF01617485
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DOI: https://doi.org/10.1007/BF01617485