@article{408673,
      author = {Bell, Philip,},
      url = {http://library.usi.edu/record/408673},
      title = {Learning science in informal environments people, places,  and pursuits / [electronic resource] :},
      publisher = {National Academies Press,},
      recid = {408673},
      pages = {xii, 336 p. :},
      address = {Washington, DC :},
      year = {2009},
}