World Health Organization. (2007). Cancer Control, Knowledge into Action Who Guide for Effective Programmes: Early Detection. World Health.
Chicago Style aipamenaWorld Health Organization. Cancer Control, Knowledge into Action Who Guide for Effective Programmes: Early Detection. Washington D.C: World Health, 2007.
MLA aipamenaWorld Health Organization. Cancer Control, Knowledge into Action Who Guide for Effective Programmes: Early Detection. World Health, 2007.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.