@article{262797,
      author = {Johnsen, Ole.},
      url = {http://library.usi.edu/record/262797},
      title = {Photographic guide to minerals of the world /},
      publisher = {Oxford University Press ;},
      recid = {262797},
      pages = {439 p. :},
      address = {Oxford ;},
      year = {2002},
}