@incollection{Clark-Haviland77,
  author	= {Clark, H. H. and Haviland, S. E.},
  editor	= {Freedle, R. Q.},
  year		= {1977},
  title		= {Comprehension and the Given-New Contract},
  booktitle	= {Discourse Production and Comprehension},
  pages		= {1--40},
  publisher	= {Ablex Publishing},
  address	= {Hillsdale, N. J.}
}