@incollection{Heritage84,
  author	= {Heritage, John},
  editor	= {Atkinson, J. M. and Heritage, J. C.},
  year		= {1984},
  title		= {A 'change of state' token and aspects of its sequential placement},
  booktitle	= {Structures of Social Action},
  publisher	= {Cambridge University Press},
  address	= {Cambridge}
}