@article{797709,
      author = {Wilson, Suzanne M., and Schweingruber, Heidi A., and  Nielsen, Natalie,},
      url = {http://library.usi.edu/record/797709},
      title = {Science teachers' learning : enhancing opportunities,  creating supportive contexts /},
      recid = {797709},
      pages = {1 online resource (257 pages) :},
}