National Research Council (U.S.). Committee on Early Childhood Mathematics, ebrary, Inc, Cross, C. T., Woods, T. A., & Schweingruber, H. A. (2009). Mathematics learning in early childhood: Paths toward excellence and equity. National Academies Press.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)National Research Council (U.S.). Committee on Early Childhood Mathematics, Inc ebrary, Christopher T. Cross, Taniesha A. Woods, và Heidi A. Schweingruber. Mathematics Learning in Early Childhood: Paths Toward Excellence and Equity. Washington, DC: National Academies Press, 2009.
Trích dẫn kiểu MLA (xuất bản lần thứ 9)National Research Council (U.S.). Committee on Early Childhood Mathematics, et al. Mathematics Learning in Early Childhood: Paths Toward Excellence and Equity. National Academies Press, 2009.