@article{9851,
      author = {Hales, Robert H.},
      url = {http://library.usi.edu/record/9851},
      title = {Contact lenses : a clinical approach to fitting /},
      publisher = {Williams & Wilkins,},
      recid = {9851},
      pages = {xiii, 248 p. :},
      address = {Baltimore :},
      year = {1978},
}