@article{693358,
      author = {Fullan, Michael. and McKenzie, Walter B. and Getty. and  Hamilton, John.},
      url = {http://library.usi.edu/record/693358},
      title = {The principal : three keys to maximizing impact   [electronic resource]/},
      recid = {693358},
      pages = {1 online resource (194 pages)},
}