@incollection{Halliday80-termsforward,
  author	= {Halliday, M. A. K.},
  editor	= {de Joia, Alex and Stenton, Adrian},
  year		= {1980},
  title		= {Foreword},
  booktitle	= {Terms in Systemic Linguistics. A Guide to Halliday},
  publisher	= {Batsford},
  address	= {London}
}