@misc{indiciae47e7f694fe7b,
  title = {The child language data exchange system.},
  author = {B MacWhinney and C Snow},
  year = {1985},
  doi = {10.1017/s0305000900006449},
  url = {https://pubmed.ncbi.nlm.nih.gov/4019604/},
  note = {Source identifier: 4019604}
}