@incollection{Butt88,
  author	= {Butt, David G.},
  editor	= {Fawcett, Robin P. and Young, David},
  year		= {1988},
  title		= {Ideational meaning and the existential fabric of a poem},
  booktitle	= {New developments in systemic linguistics: theory and application},
  publisher	= {Pinter},
  address	= {London}
}