@incollection{Halliday76-functionalgrammars,
  author	= {Halliday, Michael A. K.},
  editor	= {Kress, Gunther R.},
  year		= {1976},
  title		= {The form of a functional grammar},
  booktitle	= {Halliday: system and function in language},
  note		= {Revised version of paper `On Functional Grammars' originally read to the Seminar on the Construction of Complex Grammars, Cambridge, MA. Also, a further version has appeared in B. Bernstein (ed.)(1973) \em Class Codes and Control, Vol. II, London: Routledge and Kegan Paul},
  publisher	= {Oxford University Press},
  address	= {London}
}