@article{933390,
      author = {Hattie, John, and Stern, Julie Harris, and Fisher,  Douglas, and Frey, Nancy,},
      url = {http://library.usi.edu/record/933390},
      title = {Visible learning® for social studies, grades K-12 :  designing student learning for conceptual understanding /},
      recid = {933390},
      pages = {1 online resource (xxi, 166 pages) :},
}