Cita APA (7th ed.)

Clements, D. H., & Sarama, J. (2021). Learning and teaching early math: The learning trajectories approach (Third edition.). Routledge Taylor & Francis Group.

Cita Chicago (17th ed.)

Clements, Douglas H., i Julie Sarama. Learning and Teaching Early Math: The Learning Trajectories Approach. Third edition. New York, USA: Routledge Taylor & Francis Group, 2021.

Cita MLA (9th ed.)

Clements, Douglas H., i Julie Sarama. Learning and Teaching Early Math: The Learning Trajectories Approach. Third edition. Routledge Taylor & Francis Group, 2021.