Howard, G. B. (2002). Healthy villages: A guide for communities and comunity health workers. World Health Organization.
Citazione stile Chigago Style (17a edizione)Howard, Guy Bogh. Healthy Villages: A Guide for Communities and Comunity Health Workers. Geneva: World Health Organization, 2002.
Citatione MLA (8a ed.)Howard, Guy Bogh. Healthy Villages: A Guide for Communities and Comunity Health Workers. World Health Organization, 2002.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.