Overholt, J. L., White-Holtz, J., & Dickson, S. S. (1999). Big math activities for young children for preschool, kindergarten, and primary children. Delmar Publishers.
Παραπομπή σε μορφή Chicago (17η εκδ.)Overholt, James L., Jackie White-Holtz, και Sydney S. Dickson. Big Math Activities for Young Children for Preschool, Kindergarten, and Primary Children. Albany, N.Y.: Delmar Publishers, 1999.
Παραπομπή σε μορφή MLA (8th εκδ.)Overholt, James L., et al. Big Math Activities for Young Children for Preschool, Kindergarten, and Primary Children. Delmar Publishers, 1999.
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