@incollection{McCombsShaw99,
  author	= {McCombs, Maxwell E. and Shaw, Donald L.},
  editor	= {Tumber, Howard},
  title		= {The agenda-setting function of mass media},
  pages		= {320--328},
  booktitle	= {News: a reader},
  publisher	= {Oxford University Press},
  year		= {1999},
  address	= {Oxford},
}