@incollection{Halliday66-lexis,
  author	= {Halliday, Michael A. K.},
  editor	= {al., C. E. Bazell \em et},
  year		= {1966},
  title		= {Lexis as a linguistic level},
  booktitle	= {In Memory of J.R. Firth},
  publisher	= {Longman},
  address	= {London}
}