@incollection{Halliday79-modes,
  author	= {Halliday, Michael A. K.},
  editor	= {Allerton, D. J. and Carney, E. and Holdcroft, D.},
  year		= {1979},
  title		= {Modes of meaning and modes of saying: types of grammatical structure and their determination by different semantic functions},
  pages		= {57--79},
  booktitle	= {Function and Context in Linguistic Analysis. Essays offered to William Haas},
  publisher	= {Cambridge University Press},
  address	= {Cambridge}
}