@incollection{Firth57-modes,
  author	= {Firth, J. R.},
  editor	= {Firth, J. R.},
  year		= {1957},
  title		= {Modes of Meaning (1951)},
  booktitle	= {Papers in linguistics 1934-1951},
  pages		= {190--215},
  publisher	= {Oxford University Press}
}