@incollection{Hasan95-conditions,
  author	= {Hasan, Ruqaiya},
  editor	= {Sadovnik, Alan},
  year		= {1995},
  title		= {On social conditions for semiotic mediation: the genesis of mind in society},
  booktitle	= {Knowledge and pedagogy: the sociology of Basil Bernstein},
  publisher	= {Ablex},
  address	= {Norwood, N.J.},
  pages		= {171--196}
}