Frost, J. L., Wortham, S. C., & Reifel, R. S. (2001). Play and child development. Merrill, Prentice Hall.
芝加哥风格引文Frost, Joe L., Sue Clark Wortham, 与 Robert Stuart Reifel. Play and Child Development. Upper Saddle River, N.J: Merrill, Prentice Hall, 2001.
MLA引文Frost, Joe L., et al. Play and Child Development. Merrill, Prentice Hall, 2001.
警告：这些引文格式不一定是100％准确.