@book{20534,
  keywords = {Prevention & control, Methods, Epidemiology, Disease control},
  author = {Bonita R and Beaglehole R and Kjellstroem T},
  title = {Basic epidemiology},
  year = {2006},
  edition = {2nd ed.},
  pages = {213 p.},
  publisher = {WHO},
  address = {Geneva},
  isbn = {92-4-154707-3},
  url = {http://apps.who.int/iris/bitstream/10665/43541/1/9241547073_eng.pdf},
}