@article{253580,
      note = {"With a new postscript by the author"--Cover.},
      author = {Smolin, Lee,},
      url = {http://library.usi.edu/record/253580},
      title = {Three roads to quantum gravity /},
      publisher = {Basic Books,},
      recid = {253580},
      pages = {viii, 245 p. :},
      address = {New York, N.Y. :},
      year = {2002},
}