@article{125837,
      author = {Goldman, Henry M. and Cohen, D. Walter},
      url = {http://library.usi.edu/record/125837},
      title = {Periodontal therapy /},
      publisher = {Mosby,},
      recid = {125837},
      pages = {xiii, 1217 p. :},
      address = {St. Louis :},
      year = {1980},
}