@incollection{Butt91,
  author	= {Butt, David J.},
  editor	= {Christie, Fran},
  year		= {1991},
  title		= {Some basic tools in a linguistic approach to personality: a Firthian concept of social process},
  booktitle	= {Literacy in social processes: papers from the Inaugural Australian Systemic Functional Linguistics Conference, Deakin University, January 1990},
  publisher	= {Centre for Studies of Language in Education, Northern Territory University},
  address	= {Darwin}
}