Puffer, R. R., & Serrano, C. V. (1973). Patterns of Mortality in Childhood. Pan Anerican Health Organization.
Citazione stile Chigago Style (17a edizione)Puffer, Rice Ruth, e Carlos V. Serrano. Patterns of Mortality in Childhood. Washington, D.C: Pan Anerican Health Organization, 1973.
Citatione MLA (9a ed.)Puffer, Rice Ruth, e Carlos V. Serrano. Patterns of Mortality in Childhood. Pan Anerican Health Organization, 1973.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.