@article{407733,
      author = {Helpman, Elhanan.},
      url = {http://library.usi.edu/record/407733},
      title = {The mystery of economic growth/},
      publisher = {Belknap Press of Harvard University Press,},
      recid = {407733},
      pages = {xii, 223 p. :},
      address = {Cambridge, Mass. :},
      year = {2004},
}