APA引文

DeVries, R., & Sales, C. (2011). Ramps & pathways: A constructivist approach to physics with young children. National Association for the Education of Young Children.

Chicago Style (17th ed.) Citation

DeVries, Rheta, and Christina Sales. Ramps & Pathways: A Constructivist Approach to Physics with Young Children. Washington, D.C: National Association for the Education of Young Children, 2011.

MLA引文

DeVries, Rheta, and Christina Sales. Ramps & Pathways: A Constructivist Approach to Physics with Young Children. National Association for the Education of Young Children, 2011.