@incollection{Hasan91,
  author	= {Hasan, Ruqaiya},
  editor	= {Le, T. and McCausland, M.},
  year		= {1991},
  title		= {Questions as a mode of learning in everyday talk},
  booktitle	= {Language education: interaction and development},
  publisher	= {University of Tasmania},
  address	= {Launceston},
  pages		= {70-.115}
}