World Health Organization. (2011). Tuberculosis prevalence surveys: A handbook. World Health Organization.
Citazione stile Chigago Style (17a edizione)World Health Organization. Tuberculosis Prevalence Surveys: A Handbook. Geneva, Switzerland: World Health Organization, 2011.
Citatione MLA (8a ed.)World Health Organization. Tuberculosis Prevalence Surveys: A Handbook. World Health Organization, 2011.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.