@article{436975,
      recid = {436975},
      author = {Hiley, David.},
      title = {Gregorian chant /},
      publisher = {Cambridge University Press,},
      address = {Cambridge, UK ;},
      pages = {xx, 250 p. :},
      year = {2009},
      url = {http://library.usi.edu/record/436975},
}