@incollection{Halliday93-quantitative,
  author	= {Halliday, M. A. K.},
  editor	= {Hoey, Michael},
  year		= {1993},
  title		= {Quantitative studies and probabilities in grammar},
  booktitle	= {Data, description, discourse: papers on the English language in honour of John McH. Sinclair},
  address	= {Harper Collins}
}