@article{419548,
      url = {http://library.usi.edu/record/419548},
      title = {Improving teacher preparation and credentialing consistent  with the National Science Education Standards report of a  symposium / [electronic resource] :},
      publisher = {National Academy Press,},
      recid = {419548},
      pages = {vi, 84 p. ;},
      address = {Washington, DC :},
      year = {1997},
}