Fenson, L., Tomasello, M., Mervis, C. B., & Stiles, J. (1994). Variability in early communicative development. Society for Research in Child Development.
Chicago Style (17. basım) AtıfFenson, Larry, Michael Tomasello, Carolyn B. Mervis, ve Joan Stiles. Variability in Early Communicative Development. Chicago, Ill: Society for Research in Child Development, 1994.
MLA (9th ed.) AtıfFenson, Larry, et al. Variability in Early Communicative Development. Society for Research in Child Development, 1994.
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