1. A First Language: The Early Stages;Brown,1973
2. The development of temporal reference during the acquisition of language;Cromer,1968
3. What's cousin Arthur's daddy's name?: The acquisition of knowledge about kinship;Goldfield;First Language,1992
4. Pragmatic and Semantic Aspects of Early Language Development;Moerk,1977
5. The CHILDES Project: Tools for Analyzing Talk, Volume I: Transcription Format and Programs;MacWhinney,2000