Fenson, L., Tomasello, M., Mervis, C. B., & Stiles, J. (1994). Variability in early communicative development. Society for Research in Child Development.
Chicago-referens (17:e uppl.)Fenson, Larry, Michael Tomasello, Carolyn B. Mervis, och Joan Stiles. Variability in Early Communicative Development. Chicago, Ill: Society for Research in Child Development, 1994.
MLA-referens (9:e uppl.)Fenson, Larry, et al. Variability in Early Communicative Development. Society for Research in Child Development, 1994.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.