@article{1397506,
      recid = {1397506},
      author = {Cotton, Kathleen.},
      title = {Principals and student achievement what the research says  / [electronic resource] :},
      publisher = {Association for Supervision and Curriculum Development,},
      address = {Alexandria, Va. :},
      pages = {1 online resource (xi, 107 p.)},
      year = {2003},
      url = {http://library.usi.edu/record/1397506},
}