@article{850573,
      author = {Bingham, Charles Steven, and Egelson, Paula, and Sanzo,  Karen,},
      url = {http://library.usi.edu/record/850573},
      title = {Research-based instructional practices of effective  principals /},
      recid = {850573},
      pages = {1 online resource (xiv, 270 pages.)},
}