@article{19890,
      note = {Kept up to date by pocket supplements.},
      author = {Chisum, Donald S., and Jacobs, Michael A., and Chisum,  Donald S.},
      url = {http://tind.wipo.int/record/19890},
      title = {World intellectual property guidebook.: United States /},
      recid = {19890},
      pages = {1 volume (various paging) ;},
}