@article{471239,
      author = {Zwiers, Jeff. and Crawford, Marie.},
      url = {http://library.usi.edu/record/471239},
      title = {Academic conversations : classroom talk that fosters  critical thinking and content understandings /},
      publisher = {Stenhouse Publishers,},
      recid = {471239},
      pages = {vi, 234 p. :},
      address = {Portland, Me. :},
      year = {2011},
}