@incollection{Halliday75-chap,
  author	= {Halliday, M. A. K.},
  editor	= {Lenneberg, Eric and Lenneberg, Elizabeth},
  year		= {1975},
  title		= {Learning how to mean},
  booktitle	= {Foundations of language development: a multidisciplinary approach},
  publisher	= {Academic Press},
  address	= {New York}
}