APA (7th ed.) Citation

Sarama, J., & Clements, D. H. (2009). Early childhood mathematics education research: Learning trajectories for young children. Routledge.

Chicago Style (17th ed.) Citation

Sarama, Julie, and Douglas H. Clements. Early Childhood Mathematics Education Research: Learning Trajectories for Young Children. New York: Routledge, 2009.

MLA (8th ed.) Citation

Sarama, Julie, and Douglas H. Clements. Early Childhood Mathematics Education Research: Learning Trajectories for Young Children. Routledge, 2009.