Vaughan, J. P., & Morrow, R. H. (1989). Manual of epidemiology for district health management. World Health Organization.
Citazione stile Chigago Style (17a edizione)Vaughan, J. Patrick, e R. H. Morrow. Manual of Epidemiology for District Health Management. Geneva: World Health Organization, 1989.
Citatione MLA (9a ed.)Vaughan, J. Patrick, e R. H. Morrow. Manual of Epidemiology for District Health Management. World Health Organization, 1989.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.