Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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