Work by Golinkoff and Hirsh-Pasek

Book Chapter on Language Development

Children’s Needs III:by Various and George G Bear and Kathleen M. Minke(Mar 1, 2006)

And See also

Click Research, then Language, the Presentation

See Power Point Presentation (2010) on How Babies Talk

See also-How Babies Talk: The Magic and Mystery of Language in the First Three Years of Life Paperback (Amazon)