@article{470799,
      recid = {470799},
      author = {Gollub, J. P.,},
      title = {Learning and understanding improving advanced study of  mathematics and science in U.S. high schools / [electronic  resource] :},
      publisher = {National Academy Press,},
      address = {Washington, DC :},
      pages = {1 online resource (xxii, 272 p.)},
      year = {2002},
      note = {"Center for Education, Division of Behavioral and Social  Sciences and Education, National Research Council."},
      url = {http://library.usi.edu/record/470799},
}