World Health Organization. (2011). Tuberculosis prevalence surveys: A handbook. World Health Organization.
Chicago Style aipamenaWorld Health Organization. Tuberculosis Prevalence Surveys: A Handbook. Geneva, Switzerland: World Health Organization, 2011.
MLA aipamenaWorld Health Organization. Tuberculosis Prevalence Surveys: A Handbook. World Health Organization, 2011.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.