@article{705131,
      recid = {705131},
      author = {Wiggins, Grant P., and McTighe, Jay.},
      title = {The understanding by design guide to creating high-quality  units [electronic resource] /},
      publisher = {ASCD,},
      address = {Alexandria, Va. :},
      pages = {1 online resource (122 p.) :},
      year = {2011},
      url = {http://library.usi.edu/record/705131},
}