@article{125652,
      recid = {125652},
      author = {Bergen, Stephen F.},
      title = {Esthetic dentistry /},
      publisher = {W.B. Saunders,},
      address = {Philadelphia, PA :},
      pages = {xii, 133-341 p., 26 p. of color plates :},
      year = {1989},
      note = {"April 1989."},
      url = {http://library.usi.edu/record/125652},
}