Trích dẫn kiểu APA (xuất bản lần thứ 7)
National Association for the Education of Young Children, Copple, C., & Bredekamp, S. (2009). Developmentally appropriate practice in early childhood programs serving children from birth through age 8 (3rd ed.). National Association for the Education of Young Children.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)
National Association for the Education of Young Children, Carol Copple, và Sue Bredekamp. Developmentally Appropriate Practice in Early Childhood Programs Serving Children from Birth Through Age 8. 3rd ed. Washington, DC.: National Association for the Education of Young Children, 2009.
Trích dẫn kiểu MLA (xuất bản lần thứ 9)
National Association for the Education of Young Children, et al. Developmentally Appropriate Practice in Early Childhood Programs Serving Children from Birth Through Age 8. 3rd ed. National Association for the Education of Young Children, 2009.
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