@book{Butt-etal01-explorer,
  author	= {Butt, David and Fahey, Rhondda and Spinks, Sue and Yallop, Colin},
  year		= {2001},
  title		= {Using Functional Grammar: an Explorer's Guide},
  publisher	= {National Centre for English Language Teaching and Research, Macquarie University},
  edition	= {2nd. edition},
  address	= {Australia}
}