@incollection{MartinHasan89-intro,
  author	= {Martin, James R. and Hasan, R.},
  editor	= {Hasan, R. and Martin, J. R.},
  title		= {Introduction},
  booktitle	= {Language Development: learning language, learning culture},
  address	= {Norwood, N.J},
  publisher	= {Ablex},
  series	= {Advances in Discourse Processes},
  number	= {27},
  note		= {(Meaning and Choice in Language: studies for Michael Halliday)},
  year		= {1989},
  pages		= {1--9}
}