@incollection{McGregor95,
  author	= {McGregor, Bill},
  editor	= {Hasan, Ruqaiaya and Fries, Peter},
  title		= {The English 'Tag Question': a new analysis, is(n't) it?},
  pages		= {91--122},
  booktitle	= {On Subject and Theme: a discourse functional perspective},
  publisher	= {Benjamins},
  year		= {1995},
  address	= {Amsterdam}
}