Clements, D. H., & Sarama, J. (2021). Learning and teaching early math: The learning trajectories approach (Third edition.). Routledge Taylor & Francis Group.
Citace podle Chicago (17th ed.)Clements, Douglas H., a Julie Sarama. Learning and Teaching Early Math: The Learning Trajectories Approach. Third edition. New York, USA: Routledge Taylor & Francis Group, 2021.
Citace podle MLA (9th ed.)Clements, Douglas H., a Julie Sarama. Learning and Teaching Early Math: The Learning Trajectories Approach. Third edition. Routledge Taylor & Francis Group, 2021.
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