Clements, D. H., & Sarama, J. Engaging young children in mathematics standards for early childhood mathematics education.
Lua i Stíl Chicago (17ú heag.)Clements, Douglas H., agus Julie Sarama. Engaging Young Children in Mathematics Standards for Early Childhood Mathematics Education.
Lua MLA (8ú heag.)Clements, Douglas H., agus Julie Sarama. Engaging Young Children in Mathematics Standards for Early Childhood Mathematics Education.
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