APA (7th ed.) Citation

Luckenbill, J., Subramaniam, A., & Thompson, J. (2019). This is play: Environments and interactions that engage infants and toddlers. National Association for the Education of Young Children.

Chicago Style (17th ed.) Citation

Luckenbill, Julia, Aarti Subramaniam, and Janet Thompson. This Is Play: Environments and Interactions That Engage Infants and Toddlers. Washington, D.C.: National Association for the Education of Young Children, 2019.

MLA (9th ed.) Citation

Luckenbill, Julia, et al. This Is Play: Environments and Interactions That Engage Infants and Toddlers. National Association for the Education of Young Children, 2019.