@misc{indiciae432068d50a1b, title = {Variability in early communicative development.}, author = {L Fenson and P S Dale and J S Reznick and E Bates and D J Thal and S J Pethick}, year = {1994}, url = {https://pubmed.ncbi.nlm.nih.gov/7845413/}, note = {Source identifier: 7845413} }