@incollection{Halliday88,
  author	= {Halliday, M. A. K.},
  editor	= {Birch, David and O'Toole, Michael},
  year		= {1988},
  title		= {Foreword},
  booktitle	= {Functions of style},
  publisher	= {Pinter},
  address	= {London}
}