Clements, D. H., & Sarama, J. Engaging young children in mathematics standards for early childhood mathematics education.
Chicago-viite (17. p.)Clements, Douglas H., ja Julie Sarama. Engaging Young Children in Mathematics Standards for Early Childhood Mathematics Education.
MLA-viite (8. p.)Clements, Douglas H., ja Julie Sarama. Engaging Young Children in Mathematics Standards for Early Childhood Mathematics Education.
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